Removed additional dubious unwraps

The wl_keyboard Enter event, wl_keyboard Leave event, the wl_touch
Self::Down event and the ServerState::reconfigure_window function had
similar uses of `unwrap` which appear to not consider the distinct
query preparation and query execution stages.

src/server/event.rs

@@ -634,13 +634,17 @@ impl Event for client::wl_keyboard::Event {
                 surface,
                 keys,
             } => {
-                if let Some(mut query) = surface.data().copied().and_then(|key| {
+                let Some(mut query) = surface.data().copied().and_then(|key| {
                     state
                         .world
                         .query_one::<(&x::Window, &WlSurface, Option<&OnOutput>)>(key)
                         .ok()
-                }) {
+                }) else {
-                    let (window, surface, output) = query.get().unwrap();
+                    return;
+                };
+                let Some((window, surface, output)) = query.get() else {
+                    return;
+                };
                 state.last_kb_serial = Some((
                     data.get::<&client::wl_seat::WlSeat>()
                         .as_deref()
@@ -655,17 +659,20 @@ impl Event for client::wl_keyboard::Event {
                 });
                 keyboard.enter(serial, surface, keys);
             }
-            }
             client::wl_keyboard::Event::Leave { serial, surface } => {
                 if !surface.is_alive() {
                     return;
                 }
-                if let Some(mut query) = surface
+                let Some(mut query) = surface
                     .data()
                     .copied()
                     .and_then(|key| state.world.query_one::<(&x::Window, &WlSurface)>(key).ok())
-                {
+                else {
-                    let (window, surface) = query.get().unwrap();
+                    return;
+                };
+                let Some((window, surface)) = query.get() else {
+                    return;
+                };
                 if state.to_focus.as_ref().map(|d| d.window) == Some(*window) {
                     state.to_focus.take();
                 } else {
@@ -673,7 +680,6 @@ impl Event for client::wl_keyboard::Event {
                 }
                 keyboard.leave(serial, surface);
             }
-            }
             client::wl_keyboard::Event::Key {
                 serial,
                 time,
@@ -734,8 +740,10 @@ impl Event for client::wl_touch::Event {
                     }) else {
                         return;
                     };
+                    let Some((s_surface, s_factor)) = s_query.get() else {
+                        return;
+                    };
 
-                    let (s_surface, s_factor) = s_query.get().unwrap();
                     cmd.insert(target, (*s_factor,));
                     let touch = state.world.get::<&WlTouch>(target).unwrap();
                     touch.down(serial, time, s_surface, id, x * s_factor.0, y * s_factor.0);

src/server/mod.rs

@@ -736,8 +736,10 @@ impl<C: XConnection> ServerState<C> {
             debug!("not reconfiguring unknown window {:?}", event.window());
             return;
         };
-
+        let Some(mut win) = data.get::<&mut WindowData>() else {
-        let mut win = data.get::<&mut WindowData>().unwrap();
+            debug!("not reconfiguring unknown window {:?}", event.window());
+            return;
+        };
 
         let dims = WindowDims {
             x: event.x(),