fixes #17774

- Disable and enable extensions with dependencies
- Check for dependents when disabling an extension
- Tests

This reverts commit 41cb5ee5.

each one can enable it in the user settings

Adds basic line number data to the output html of the markdown renderer

Fixes #16532

Fixes #18335

Removes the definition itself from the list of references shown in the TS code lens

* Only apply TS Dot Accept Suggestion if previous character is a valid identifier char

Fixes #17825
Fixes #17770
Fixes #17584

**Bug**
When typing two or more `.` in a row, we end up unexpectedly accepting suggestions in TS files. This is caused by the custom keybinding that ts registers for `.`.

**Fix**
Only accept the suggestion on `.` if the previous character is a valid identifier character.

* Move title to nls

Part of #15583

This brings in disableStdio option (Part of #15583)

Menu shows "No Configurations" when .vscode folder is on the root of the drive and the root drive is opened in VS Code (fixes #18183)