feat: add Escape key to exit fullscreen mode and improve fullscreen setting label

Add binding for Escape key to exit fullscreen mode in WatchPointWindow.
Update settings dialog label to indicate that fullscreen mode requires ComfyUI restart to apply.

watch_point.py

@@ -936,6 +936,7 @@ class WatchPointWindow:
         self.root.bind("<t>", lambda e: self._toggle_toolbar())
         self.root.bind("<p>", lambda e: self._toggle_drawer())
         self.root.bind("<F11>", lambda e: self._toggle_fullscreen())
+        self.root.bind("<Escape>", lambda e: self._set_fullscreen(False))
         self.root.protocol("WM_DELETE_WINDOW", self._on_close)
 
     def _set_initial_state(self):
@@ -1297,7 +1298,7 @@ class WatchPointSettingsDialog:
                 print(f"Watch Point: Error listing monitors: {e}")
 
         tk.Checkbutton(frame, text="Show Toolbar on Startup", variable=self.show_toolbar_var).pack(anchor="w")
-        tk.Checkbutton(frame, text="Start in Fullscreen Mode", variable=self.start_fullscreen_var).pack(anchor="w")
+        tk.Checkbutton(frame, text="Start in Fullscreen Mode. Need ComfyUI restart to apply.", variable=self.start_fullscreen_var).pack(anchor="w")
         
         fmt_frame = tk.LabelFrame(frame, text="Default Save Format", padx=10, pady=10)
         fmt_frame.pack(anchor="w", fill="x", pady=(10, 5))