feat: Toggle "Admin anmelden" to "Admin abmelden" based on admin login status

- Implemented dynamic button label in SettingsModal to display "Admin anmelden" or "Admin abmelden" based on Redux state `isAdminLoggedIn`.
- Added `handleAdminLogout` function to clear token from localStorage and update Redux state when admin logs out.
- Refactored button click handling to toggle login/logout functionality seamlessly.

components/modales/settingsModal/SettingsModal.jsx

@@ -29,6 +29,7 @@ function generateToken(user) {
 }
 
 function SettingModal({ showModal, onClose }) {
+  const isAdminLoggedIn = useSelector((state) => state.auth.isAdminLoggedIn);
   const dispatch = useDispatch();
   const [username, setUsername] = useState("");
   const [password, setPassword] = useState("");
@@ -47,7 +48,6 @@ function SettingModal({ showModal, onClose }) {
       const token = generateToken(user);
       localStorage.setItem("token", token);
       dispatch(setAdminLoggedIn(true));
-      setIsLoggedIn(true);
       setShowLoginForm(false);
       onClose();
     } else {
@@ -94,6 +94,10 @@ function SettingModal({ showModal, onClose }) {
     ntpTimezone,
     active,
   };
+  const handleAdminLogout = () => {
+    localStorage.removeItem("token"); // Remove token on logout
+    dispatch(setAdminLoggedIn(false)); // Update Redux state
+  };
 
   useEffect(() => {
     if (showModal) {
@@ -378,10 +382,14 @@ function SettingModal({ showModal, onClose }) {
                   Neustart CPL
                 </button>
                 <button
-                  onClick={() => setShowLoginForm(true)}
+                  onClick={() => {
+                    isAdminLoggedIn
+                      ? handleAdminLogout()
+                      : setShowLoginForm(true);
+                  }}
                   className="bg-littwin-blue text-white px-4 py-2 rounded"
                 >
-                  Admin anmelden
+                  {isAdminLoggedIn ? "Admin abmelden" : "Admin anmelden"}
                 </button>
                 <button
                   className="bg-littwin-blue text-white px-4 py-2 rounded"