Fix key repeat after releasing a different key on Wayland (#9768)

Quick fix that fixes key repeat not working when releasing a different
key than the current one being held

Don't really know much rust yet, so unsure this is the best way to
handle this, but this does seem like a good starting point to get at
least a tad familiar with it

Release Notes:
- N/A

crates/gpui/src/platform/linux/wayland/client.rs

@@ -796,7 +796,12 @@ impl Dispatch<wl_keyboard::WlKeyboard, ()> for WaylandClientState {
                             })
                         };
 
-                        if !keysym.is_modifier_key() {
+                        if !keysym.is_modifier_key()
+                            && (match state.repeat.current_keysym {
+                                Some(repeat_keysym) => keysym == repeat_keysym,
+                                None => false,
+                            })
+                        {
                             state.repeat.current_keysym = None;
                         }