Update rust version (required many build changes)

src/window/hotkeys.rs

@@ -62,8 +62,8 @@ impl HotkeysWindow {
                     }
                 });
         });
-        if let Some(command) = self.now_binding {
-            if let Some(shortcut) = ui.input_mut(|i| {
+        if let Some(command) = self.now_binding
+            && let Some(shortcut) = ui.input_mut(|i| {
                 i.events.iter().find_map(|event| match event {
                     Event::Key {
                         key,
@@ -73,10 +73,10 @@ impl HotkeysWindow {
                     } => Some(KeyboardShortcut::new(*modifiers, *key)),
                     _ => None,
                 })
-            }) {
-                self.shortcuts.set(command, shortcut);
-                self.now_binding = None;
-            }
+            })
+        {
+            self.shortcuts.set(command, shortcut);
+            self.now_binding = None;
         }
     }