Improve BP Block Components & Introduce BP Block Assets

[imath]

With the introduction of the Widget Block Editor in WP 5.8, WordPress adds a "doing it wrong" message to discourage the use of the wp-editor dependency. We need to introduce a new compatibility mechanism to still be able to render BP Blocks in WP < 5.3 and above.

As it's not possible to use getEditorSettings inside the Widget Block Editor, we also need to introduce new BP Block Assets to be able to transport the BuddyPress active features into the Block Editors.

[imath]

In 12995:

Improve BP Block Components & Introduce BP Block Assets

• Adds a Compatibility ServerSideRender block component to preserve compatibility and use it to render BP Blocks in WordPress < 5.3.
• Introduce a new store to make BuddyPress active features available within any Block Editor contexts
• Update node modules.

Fixes #8512