feat: Comments (#4911)

* Comment model

* Framework, model, policy, presenter, api endpoint etc

* Iteration, first pass of UI

* fixes, refactors

* Comment commands

* comment socket support

* typing indicators

* comment component, styling

* wip

* right sidebar resize

* fix: CMD+Enter submit

* Add usePersistedState
fix: Main page scrolling on comment highlight

* drafts

* Typing indicator

* refactor

* policies

* Click thread to highlight
Improve comment timestamps

* padding

* Comment menu v1

* Change comments to use editor

* Basic comment editing

* fix: Hide commenting button when disabled at team level

* Enable opening sidebar without mark

* Move selected comment to location state

* Add comment delete confirmation

* Add comment count to document meta

* fix: Comment sidebar togglable
Add copy link to comment

* stash

* Restore History changes

* Refactor right sidebar to allow for comment animation

* Update to new router best practices

* stash

* Various improvements

* stash

* Handle click outside

* Fix incorrect placeholder in input
fix: Input box appearing on other sessions erroneously

* stash

* fix: Don't leave orphaned child comments

* styling

* stash

* Enable comment toggling again

* Edit styling, merge conflicts

* fix: Cannot navigate from insights to comments

* Remove draft comment mark on click outside

* Fix: Empty comment sidebar, tsc

* Remove public toggle

* fix: All comments are recessed
fix: Comments should not be printed

* fix: Associated mark should be removed on comment delete

* Revert unused changes

* Empty state, basic RTL support

* Create dont toggle comment mark

* Make it feel more snappy

* Highlight active comment in text

* fix animation

* RTL support

* Add reply CTA

* Translations

shared/styles/theme.ts

@@ -124,6 +124,9 @@ export const buildLightTheme = (input: Partial<Colors>): DefaultTheme => {
     backdrop: "rgba(0, 0, 0, 0.2)",
     shadow: "rgba(0, 0, 0, 0.2)",
 
+    commentBackground: colors.warmGrey,
+    commentActiveBackground: "#d7e0ea",
+
     modalBackdrop: colors.black10,
     modalBackground: colors.white,
     modalShadow:
@@ -189,6 +192,9 @@ export const buildDarkTheme = (input: Partial<Colors>): DefaultTheme => {
     backdrop: "rgba(0, 0, 0, 0.5)",
     shadow: "rgba(0, 0, 0, 0.6)",
 
+    commentBackground: colors.veryDarkBlue,
+    commentActiveBackground: colors.black,
+
     modalBackdrop: colors.black50,
     modalBackground: "#1f2128",
     modalShadow: