Loading project block animation should be mirrored for RTL languages. #3311
Description
Expected Behavior
The blocks in the loading project animation should be drawn in the RTL orientation when loading an RTL language (e.g. Hebrew or Arabic).
Actual Behavior
They are aligned to the right, but the actual blocks need to be mirrored.
Steps to Reproduce
Explain what someone needs to do in order to see what's described in Actual behavior above
Operating System and Browser
Load a project in Hebrew that takes time to load (not the default project)
e.g. https://beta.scratch.mit.edu/?locale=he#237944189