* Fix all the little RTL layout bugs

- [ ] borders on toolbox and workspace mirror correctly
- [ ] spacing on stage selector is correct
- [ ] stage size icons are mirrored
- [ ] extension library coming soon text is positioned correctly
- [ ] only mirror blocks icon on the tab (others stay right-handed)
- [ ] drop down icon in create variable modal has correct spacing

* FIx RTL backpack header border-radius

* round the bottom corner of paint/sound editors

This makes the editor’s asset panels match the blocks.

- empty MapDispatchToProps (dispatch)
- remove `on…` VM listeners from props passed to wrapped component.

Overlay a transparent `select` over the language icon. When a user clicks there the options pops up. There’s no styling of the options, other than font and font size.

For some reason the travis eslint did not catch these missing prop validations.

This reverts commit 1c20d6db, reversing
changes made to 2f1cce93.

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*Kind of*. This isn't a good way to do it because we use the storage singleton before GUI is mounted. This needs to happen differently, like configuring storage in the project loader hoc and passing it down, so it could be attached to the VM once it has a VM?

Fixup 723d975d062ce3b585715b5cbabfcdae218d901a

This reverts commit 723d975d062ce3b585715b5cbabfcdae218d901a.

Also just cleaner formatting of the connect in the `errorBoundary` container

Don’t intialize cards position in reducer - position needs to be set based on isRtl.

Rename prev/next icons to right/left arrows

Make `NextPrevButtons` function RTL aware so that it puts the prev/next on the left or right based on the direction of the language.

Note: the coming soon tooltip positions are calculated by react-tooltip, and they do not handle RTL.

* Delete confirmation i18n

* Update so that it works

padding and margin changes to make www project page layout work without hacks; hack to position monitors correctly

* Don't show intro modal if hideIntro passed to PreviewModal

* Add hideIntro prop to GUI

* Move intro modal hiding logic into its own function

Since the mainTooltpId is now being used as part of the action menu items, make sure it is generated in the constructor of the action menu component instead of within the render method. This fixes a regression caused by a recent change where the file upload buttons in the action menu stopped working.