Suppress editing of other user's locked classes via VSCode and Management Portal as early as possible

[isc-adepedro]

Suppress (editing of files in a locked environment, editing of files locked by another user) via VSCode and Management Portal (test specifically for production) as early as possible.

• VSCode allows to start editing the class.
• When attempting to save the class, an error is shown (that it is not possible to save/compile it)
• But the user still sees the file as changed
  • (by closing the file and opening the file again the changes are not there anymore though)

[isc-tleavitt]

Note: could take a similar approach to %Studio.SourceControl.ISC "attempted edit of read-only file" action to do this.