input: add direct set_surface_title and set_tab_title actions

Fixes #11316

This mirrors the `prompt` actions (hence why there is no window action
here) and enables setting titles via keybind actions which importantly
lets this work via command palettes, App Intents, AppleScript, etc.

src/input/command.zig

@@ -689,6 +689,8 @@ fn actionCommands(action: Action.Key) []const Command {
         .esc,
         .cursor_key,
         .set_font_size,
+        .set_surface_title,
+        .set_tab_title,
         .search,
         .scroll_to_row,
         .scroll_page_fractional,