fix: initialize audio context only with user interaction

Merge pull request #5874 from LLK/dependabot/npm_and_yarn/scratch-svg-renderer-0.2.0-prerelease.20200609210443

Bumps [scratch-svg-renderer](https://github.com/LLK/scratch-svg-renderer) from 0.2.0-prerelease.20200604203226 to 0.2.0-prerelease.20200609210443.
- [Release notes](https://github.com/LLK/scratch-svg-renderer/releases)
- [Commits](https://github.com/LLK/scratch-svg-renderer/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [eslint-plugin-import](https://github.com/benmosher/eslint-plugin-import) from 2.18.2 to 2.21.2.
- [Release notes](https://github.com/benmosher/eslint-plugin-import/releases)
- [Changelog](https://github.com/benmosher/eslint-plugin-import/blob/master/CHANGELOG.md)
- [Commits](https://github.com/benmosher/eslint-plugin-import/compare/v2.18.2...v2.21.2

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [scratch-l10n](https://github.com/LLK/scratch-l10n) from 3.9.20200603151351 to 3.9.20200609200912.
- [Release notes](https://github.com/LLK/scratch-l10n/releases)
- [Commits](https://github.com/LLK/scratch-l10n/compare/3.9.20200603151351...3.9.20200609200912

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Update render and svg-renderer with changes that Dependabot missed

Merge pull request #5859 from LLK/dependabot/npm_and_yarn/scratch-render-0.1.0-prerelease.20200604210444

Bumps [scratch-render](https://github.com/LLK/scratch-render) from 0.1.0-prerelease.20200602200702 to 0.1.0-prerelease.20200604210444.
- [Release notes](https://github.com/LLK/scratch-render/releases)
- [Commits](https://github.com/LLK/scratch-render/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Merge pull request #5868 from LLK/dependabot/npm_and_yarn/scratch-blocks-0.1.0-prerelease.20200609135544

Bumps [scratch-blocks](https://github.com/LLK/scratch-blocks) from 0.1.0-prerelease.20200528193139 to 0.1.0-prerelease.20200609135544.
- [Release notes](https://github.com/LLK/scratch-blocks/releases)
- [Commits](https://github.com/LLK/scratch-blocks/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Update contributor guidelines

Bumps [websocket-extensions](https://github.com/faye/websocket-extensions-node) from 0.1.3 to 0.1.4. **This update includes a security fix.**
- [Release notes](https://github.com/faye/websocket-extensions-node/releases)
- [Changelog](https://github.com/faye/websocket-extensions-node/blob/master/CHANGELOG.md)
- [Commits](https://github.com/faye/websocket-extensions-node/compare/0.1.3...0.1.4

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Stop building gh pages branches for dependabot 

Merge pull request #5858 from LLK/dependabot/npm_and_yarn/scratch-svg-renderer-0.2.0-prerelease.20200604203226

Bumps [scratch-svg-renderer](https://github.com/LLK/scratch-svg-renderer) from 0.2.0-prerelease.20200507183648 to 0.2.0-prerelease.20200604203226.
- [Release notes](https://github.com/LLK/scratch-svg-renderer/releases)
- [Commits](https://github.com/LLK/scratch-svg-renderer/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Merge pull request #5857 from LLK/dependabot/npm_and_yarn/scratch-paint-0.2.0-prerelease.20200604192759

Bumps [scratch-paint](https://github.com/LLK/scratch-paint) from 0.2.0-prerelease.20200604013720 to 0.2.0-prerelease.20200604192759.
- [Release notes](https://github.com/LLK/scratch-paint/releases)
- [Commits](https://github.com/LLK/scratch-paint/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Merge pull request #5854 from LLK/dependabot/npm_and_yarn/scratch-paint-0.2.0-prerelease.20200604013720

Bumps [scratch-paint](https://github.com/LLK/scratch-paint) from 0.2.0-prerelease.20200603154236 to 0.2.0-prerelease.20200604013720.
- [Release notes](https://github.com/LLK/scratch-paint/releases)
- [Commits](https://github.com/LLK/scratch-paint/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Merge pull request #5851 from LLK/dependabot/npm_and_yarn/scratch-paint-0.2.0-prerelease.20200603154236

Bump scratch-paint from 0.2.0-prerelease.20200602154954 to 0.2.0-prerelease.20200603154236

Bumps [scratch-paint](https://github.com/LLK/scratch-paint) from 0.2.0-prerelease.20200602154954 to 0.2.0-prerelease.20200603154236.
- [Release notes](https://github.com/LLK/scratch-paint/releases)
- [Commits](https://github.com/LLK/scratch-paint/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [scratch-l10n](https://github.com/LLK/scratch-l10n) from 3.9.20200528181319 to 3.9.20200603151351.
- [Release notes](https://github.com/LLK/scratch-l10n/releases)
- [Commits](https://github.com/LLK/scratch-l10n/compare/3.9.20200528181319...3.9.20200603151351

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Merge pull request #5846 from LLK/dependabot/npm_and_yarn/scratch-render-0.1.0-prerelease.20200602200702

Bumps [scratch-render](https://github.com/LLK/scratch-render) from 0.1.0-prerelease.20200512203149 to 0.1.0-prerelease.20200602200702.
- [Release notes](https://github.com/LLK/scratch-render/releases)
- [Commits](https://github.com/LLK/scratch-render/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Merge pull request #5845 from LLK/dependabot/npm_and_yarn/scratch-paint-0.2.0-prerelease.20200602154954

Bumps [scratch-paint](https://github.com/LLK/scratch-paint) from 0.2.0-prerelease.20200602002610 to 0.2.0-prerelease.20200602154954.
- [Release notes](https://github.com/LLK/scratch-paint/releases)
- [Commits](https://github.com/LLK/scratch-paint/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Merge pull request #5842 from LLK/dependabot/npm_and_yarn/scratch-vm-0.2.0-prerelease.20200602151852

Bumps [scratch-vm](https://github.com/LLK/scratch-vm) from 0.2.0-prerelease.20200527195112 to 0.2.0-prerelease.20200602151852.
- [Release notes](https://github.com/LLK/scratch-vm/releases)
- [Commits](https://github.com/LLK/scratch-vm/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Remove box-sizing: content-box from sprite highlight box CSS

Merge pull request #5841 from LLK/dependabot/npm_and_yarn/scratch-paint-0.2.0-prerelease.20200602002610

Bumps [scratch-paint](https://github.com/LLK/scratch-paint) from 0.2.0-prerelease.20200529184518 to 0.2.0-prerelease.20200602002610.
- [Release notes](https://github.com/LLK/scratch-paint/releases)
- [Commits](https://github.com/LLK/scratch-paint/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>