linux: Tweak file chooser dialogs (#14526)

Mostly some small tweaks to the file chooser dialogs.

Fixes https://github.com/zed-industries/zed/issues/14127 (along with the
`ashpd` update in https://github.com/zed-industries/zed/pull/14401)

Also included a fix
(971d67c994)
for an issue that made multiple file chooser dialogs pop up on Wayland
when doing CTRL + O and quickly pressing the escape key.

Release Notes:

- N/A

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

@@ -1119,7 +1119,10 @@ impl Dispatch<wl_keyboard::WlKeyboard, ()> for WaylandClientStatePtr {
                 let keyboard_focused_window = get_window(&mut state, &surface.id());
                 state.keyboard_focused_window = None;
                 state.enter_token.take();
+                // Prevent keyboard events from repeating after opening e.g. a file chooser and closing it quickly
+                state.repeat.current_id += 1;
                 state.clipboard.set_offer(None);
+                state.clipboard.set_primary_offer(None);
 
                 if let Some(window) = keyboard_focused_window {
                     if let Some(ref mut compose) = state.compose_state {