feat: add Close to the Left command to right click context menu

[henrikvilhelmberglund]

This PR adds a Close to the Left command below the existing Close to the Right command in the context menu shown when right clicking on a tab.

I find myself wanting to use this command a lot since opening new files makes them appear to the right and I want to close the old tabs while still keeping the new tabs to the right.

The command was added below the Close to the Right to not mess with muscle memory of people already using Close to the Right.

Before:

After:

Feel free to edit.

[benibenj]

We are not planning on adding new actions to the context menus of tabs. There already a lot and we do not want to clutter that menu. We already support the workbench.action.closeEditorsToTheLeft command for which you can set a key binding or call from the command palette. We also newly support multi selecting tabs. This would allow you to select tabs with shift + click and run the close (ctrl+w) or close others action.

[henrikvilhelmberglund]

We are not planning on adding new actions to the context menus of tabs. There already a lot and we do not want to clutter that menu. We already support the workbench.action.closeEditorsToTheLeft command for which you can set a key binding or call from the command palette. We also newly support multi selecting tabs. This would allow you to select tabs with shift + click and run the close (ctrl+w) or close others action.

Are there any plans for adding customizability for context menus then? It seems a bit silly that clutter is mentioned as a reason when I have never used half of the commands in the context menu.

[gjsjohnmurray]

Are there any plans for adding customizability for context menus then?

This is a longstanding request - #9285