Show Delete shortcuts in project panel context menu

[SomeoneToIgnore]

Closes #12234 by making both default keymap and the menu Delete action declarations to have the same skip_prompt value.
Trash action got more explicit skip_prompt declarations in this PR, but those were the defaults already, so not changed.

Now, Delete action in the project panel will always show a prompt before removing, both on the keystroke and menu item click.
To note, VSCode does skips prompt for the Trash action, so we might want to change that too (later?), the PR does not alter it.

Release Notes:

• Shows Delete action binding keys in the project panel context menu (12234)

[Angelk90]

@SomeoneToIgnore : You can also change the label of:

Vscode:

Zed:

[SomeoneToIgnore]

Do you mean adding the integrated word?
I think it's fine already without.

[Angelk90]

@SomeoneToIgnore :

• I would rename Rename to Rename...
• I would rename Open in Terminal to Open in Integrated Terminal

[SomeoneToIgnore]

I would prefer shorter, concise phrases instead, thank you for proposing.