[WIKI-181] refactor: file plugins and types (#7074)

* refactor: file plugins and types

* refactor: image extension storage types

* chore: update meta tag name

* chore: extension fileset storage key

* fix: build errors

* refactor: utility extension

* refactor: file plugins

* chore: remove standalone plugin extensions

* chore: refactoring out onCreate into a common utility

* refactor: work item embed extension

* chore: use extension enums

* fix: errors and warnings

* refactor: rename extension files

* fix: tsup reloading issue

* fix: image upload types and heading types

* fix: file plugin object reference

* fix: iseditable is hard coded

* fix: image extension names

* fix: collaborative editor editable value

* chore: add constants for editor meta as well

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Co-authored-by: Palanikannan M <akashmalinimurugu@gmail.com>

packages/ui/package.json

@@ -71,7 +71,7 @@
     "postcss-cli": "^11.0.0",
     "postcss-nested": "^6.0.1",
     "storybook": "^8.1.1",
-    "tsup": "^8.4.0",
+    "tsup": "8.3.0",
     "typescript": "5.3.3"
   }
 }