perf: 用 autoflake 删除无用依赖

没想到居然能意外地大幅提升启动速度

src/heurams/interface/screens/navigator.py

@@ -1,13 +1,10 @@
-import webbrowser
 
 from textual.app import ComposeResult
-from textual.containers import Grid, ScrollableContainer
+from textual.containers import Grid
 from textual.screen import ModalScreen
-from textual.widgets import Button, Footer, Header, Label, ListItem, ListView, Static
+from textual.widgets import Button, Label, ListItem, ListView, Static
 
-from textual import events, on
 
-from heurams.context import *
 from heurams.services.logger import get_logger
 
 from .favmgr import FavoriteManagerScreen