Update AnimationComponent to the new component format (#4174)

* Update AnimationComponent to new format

* No longer need to fix up AnimationComponent types

* Lint fix

* Restore onSetAnimations

* Fix docs generation

* Set assets array correctly

* Re-add ComponentSystem#system and entity to docs

* Improve JSDocs

* Simplify JSDocs

* Add newline after Application JSDocs

* Back out exposing Component properties because of API refs problems

src/animation/skeleton.js

@@ -2,6 +2,7 @@ import { Debug } from '../core/debug.js';
 import { Quat } from '../math/quat.js';
 import { Vec3 } from '../math/vec3.js';
 
+/** @typedef {import('./animation.js').Animation} Animation */
 /** @typedef {import('../scene/graph-node.js').GraphNode} GraphNode */
 
 class InterpolatedKey {

src/framework/application.js

@@ -93,7 +93,8 @@ import { XrManager } from '../xr/xr-manager.js';
  * manually.
  *
  * @augments AppBase
- */class Application extends AppBase {
+ */
+class Application extends AppBase {
     /**
      * Create a new Application instance.
      *