tasks: Allow disabling runnables in the gutter (#13329)

Runnables can now be disabled with:
```
  "gutter": {
    "runnables": false
  }
```
Fixes #13280



Release Notes:

- Added `gutter.runnables` setting that controls whether runnable
indicators are displayed in the gutter.
58e9952d7bPiotr Osiewicz committed on 6/20/2024, 7:07:45 PM· committed by GitHubparent25c8cf0
4 files changedLine totals unavailable