fix: dispose performance (#6894)

* fix: improve dispose performance

* chore: cleanup dispose functions

* chore: split dispose into dispose and disposeInternal

* chore: remove unnecessary node removal

* fix: remove unnecessary unbinding of event listeners

* fix: readd skipping event construction

* chore: work on fixing tests

* chore: fix remaining test failures

* chore: format

* chore: typo

* fix: first pass of PR comments

* chore: remove TODO

core/block_animations.ts

@@ -39,6 +39,9 @@ let wobblingBlock: BlockSvg|null = null;
  * @internal
  */
 export function disposeUiEffect(block: BlockSvg) {
+  // Disposing is going to take so long the animation won't play anyway.
+  if (block.getDescendants(false).length > 100) return;
+
   const workspace = block.workspace;
   const svgGroup = block.getSvgRoot();
   workspace.getAudioManager().play('delete');