Clean up JSDoc (#327)

* Convert comments to JSDoc

* Clean JSdoc

* nit

* Clean up all JSDoc & ESLint warnings

Disables max-len for now
Removes redundant JSDoc tags (empty, same name, wrong name, etc)

src/types/serialisation.ts

@@ -106,7 +106,7 @@ export interface ClipboardItems {
   links?: SerialisableLLink[]
 }
 
-/** */
+/** @deprecated */
 export interface IClipboardContents {
   nodes?: ISerialisedNode[]
   links?: TClipboardLink[]

src/types/widgets.ts

@@ -27,7 +27,6 @@ export interface IWidgetOptions<TValue = unknown> extends Record<string, unknown
 
 /**
  * A widget for a node.
- * @typescript
  * All types are based on IBaseWidget - additions can be made there or directly on individual types.
  *
  * Implemented as a discriminative union of widget types, so this type itself cannot be extended.