fix：登录超时后没有用户名

src/stores/Auth.js

@@ -126,11 +126,16 @@ const useAuthStore = create((set, get) => ({
   },
 
   logout: () => {
-    const { tokenInterval } = get()
+    const { tokenInterval, currentUser } = get()
     const { clearStorage } = usingStorage()
     clearStorage()
     clearInterval(tokenInterval)
-    set(initialState)
+    set(() => ({
+      ...initialState,
+      currentUser: {
+        username: currentUser.username
+      }
+    }))
   },
 
   startTokenInterval: () => {