Fixed some margins, added requires/collab library item section, and reminders to make extension/metadata-only.

Export the tutorial card URL query string handling for www.
Also fix typo

Adds `?tutorial=all` as a recognized option. Gui opens without the preview modal, and with the Tutorials Library open.

Back button in the Tutorials Library takes you to the Editor (not back to referrer).

made alert messages translation-ready
updated project saver hoc
default alerts to COLOR_ORANGE

got tests working

made neutral button color

* Updates to GIFs and HoC content

* lint

* Override blocks playNote_ to emit VM event

* update blocks

Put stage, monitors, add buttons, tooltips, menubar under the block drag layer. Make sure the Extension button is above the toolbox.

* Use target id in volume reporter block

* update VM