[epic] v3 of save / share scenes

[kfarr]

As a user I can open community scenes or import a streetmix street, modify the scene, name it, then save and share the scenes URL directly with other people.

(This is a followup to v2 open/save scenes epic #259)

PR for this epic: TBD

Business Goals

• Test email sending - automatic after joining
• Zade - Open community scenes route (featured scenes) when opening empty app show open modal community scenes in 3dstreet.app if no file specified to load in URL #299

User Expectations

• Zade - boolean property widget does not work as expected checkbox does not always work correctly  #374
• Zade as a user, scenes saved via "save as" do not appear in open dialog until reloading #371
• always show duplicate / delete / component info Some entities do not display all components and duplicate / delete buttons on properties panel #362
• Zade - after thumbnail set does not show in open modal After "set as thumbnail" the thumbnail does not display in the open modal until the application is reloaded #375
• After renaming street in open modal, cannot click street to load #377
• AG? thumbnail not created in some cases Thumbnail not created when user does "remix" or "save as..." #351
• AG? sometimes screenshot results in black image sometimes taking screenshot results in black image #372
• AG - use STREET global in Editor repo use STREET global instead of random global functions for json-utils 3dstreet#390

Instrumentation:

• Zade - fix google analytics loading instantiate and load google analytics from react app, not html tag #390
• Zade - Instrument top 2 metrics add top 2 metrics via GA #324

To defer for future

• Zade - break up build file into smaller pieces [blocked] Use routes to split up js dist files #286
• create prod vs. dev server firebase target settings fix deployment target firebase.json settings #355
• generate GLB upon user request [pause] Allow user to save glb to server (similar to thumbnail save) #361
• Teleport behavior should match editor + core add teleport to editor to match core viewer #313
• title not displaying when loading scene in new window from URL scene title does not display when loading directly from URL in new window #376

[kfarr]

completed another epic, thanks @ViktoriaShurhot !