Use zed-style shifted letters (#20254)

Release Notes:

- vim: Fixed some shortcuts to render correctly in Command

crates/vim/src/visual.rs

@@ -752,7 +752,7 @@ mod test {
             },
             Mode::Visual,
         );
-        cx.simulate_keystrokes("g I");
+        cx.simulate_keystrokes("g shift-i");
         cx.assert_state(
             indoc! {
                 "ˇThe quick brown
@@ -775,7 +775,7 @@ mod test {
             },
             Mode::Visual,
         );
-        cx.simulate_keystrokes("g A");
+        cx.simulate_keystrokes("g shift-a");
         cx.assert_state(
             indoc! {
                 "The quick brownˇ