FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/file-uri-to-path/test/tests.json

@@ -0,0 +1,13 @@
+{
+  "file://host/path": "\\\\host\\path",
+  "file://localhost/etc/fstab": "\\etc\\fstab",
+  "file:///etc/fstab": "\\etc\\fstab",
+  "file:///c:/WINDOWS/clock.avi": "c:\\WINDOWS\\clock.avi",
+  "file://localhost/c|/WINDOWS/clock.avi": "c:\\WINDOWS\\clock.avi",
+  "file:///c|/WINDOWS/clock.avi": "c:\\WINDOWS\\clock.avi",
+  "file://localhost/c:/WINDOWS/clock.avi": "c:\\WINDOWS\\clock.avi",
+  "file://hostname/path/to/the%20file.txt": "\\\\hostname\\path\\to\\the file.txt",
+  "file:///c:/path/to/the%20file.txt": "c:\\path\\to\\the file.txt",
+  "file:///C:/Documents%20and%20Settings/davris/FileSchemeURIs.doc": "C:\\Documents and Settings\\davris\\FileSchemeURIs.doc",
+  "file:///C:/caf%C3%A9/%C3%A5r/d%C3%BCnn/%E7%89%9B%E9%93%83/Ph%E1%BB%9F/%F0%9F%98%B5.exe": "C:\\café\\år\\dünn\\牛铃\\Phở\\😵.exe"
+}