feat: add scenes rpcs thought tokio oneshot channels and change realm for restricted action api

[kuruk-mm]

Extra BugFix for CameraModeArea: when you unload the scene while you're in a CameraModeArea, it triggers the exit of the area.

[codecov-commenter]

Codecov Report

Attention: 227 lines in your changes are missing coverage. Please review.

Comparison is base (b613e04) 16.10% compared to head (734e00e) 15.75%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #62      +/-   ##
==========================================
- Coverage   16.10%   15.75%   -0.36%     
==========================================
  Files          70       75       +5     
  Lines        8555     8767     +212     
==========================================
+ Hits         1378     1381       +3     
- Misses       7177     7386     +209     

Files	Coverage Δ
rust/decentraland-godot-lib/src/dcl/mod.rs	28.98% <ø> (-0.43%)	⬇️
rust/decentraland-godot-lib/src/lib.rs	46.15% <ø> (-1.22%)	⬇️
...t/decentraland-godot-lib/src/scene_runner/scene.rs	21.80% <20.00%> (-0.17%)	⬇️
...raland-godot-lib/src/scene_runner/rpc_calls/mod.rs	0.00% <0.00%> (ø)
...traland-godot-lib/src/scene_runner/update_scene.rs	0.00% <0.00%> (ø)
rust/decentraland-godot-lib/src/dcl/js/engine.rs	0.00% <0.00%> (ø)
rust/decentraland-godot-lib/src/dcl/js/mod.rs	0.00% <0.00%> (ø)
...raland-godot-lib/src/scene_runner/scene_manager.rs	0.35% <0.00%> (+<0.01%)	⬆️
rust/decentraland-godot-lib/src/common/rpc.rs	0.00% <0.00%> (ø)
...traland-godot-lib/src/dcl/js/restricted_actions.rs	0.00% <0.00%> (ø)
... and 2 more

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[leanmendoza]

The RPC implementation is good, I'm not really sure about setting callbacks for the answers, maybe use directly with channels?