vim: ! support (#23169)

Closes #22885
Closes #12565 

This doesn't yet add history in the command palette, which is painfully
missing.

Release Notes:

- vim: Added `:!`, `:<range>!` and `:r!` support
- vim: Added `!` operator in normal/visual mode

Cargo.lock

@@ -14305,6 +14305,7 @@ dependencies = [
  "indoc",
  "itertools 0.14.0",
  "language",
+ "libc",
  "log",
  "lsp",
  "multi_buffer",
@@ -14318,6 +14319,7 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "settings",
+ "task",
  "theme",
  "tokio",
  "ui",