Add settings page with change password, fix terminal ws bug

dashboard/backend/routers/terminal.py

@@ -16,7 +16,7 @@ async def ws_endpoint(websocket: WebSocket, user: str = Depends(auth.get_current
         return
 
 
-    await ws.accept()
+    await websocket.accept()
     master_fd, slave_fd = pty.openpty()
     pid = os.fork()
 
@@ -40,7 +40,7 @@ async def ws_endpoint(websocket: WebSocket, user: str = Depends(auth.get_current
                     data = os.read(master_fd, 4096)
                     if not data:
                         break
-                    await ws.send_bytes(data)
+                    await websocket.send_bytes(data)
         except (OSError, WebSocketDisconnect):
             pass
 
@@ -53,7 +53,7 @@ async def ws_endpoint(websocket: WebSocket, user: str = Depends(auth.get_current
 
     try:
         while True:
-            msg = await ws.receive()
+            msg = await websocket.receive()
             if "bytes" in msg and msg["bytes"]:
                 data = msg["bytes"]
                 # Handle resize: first byte 0x01 means resize message