opt.: migrate to new fl_lib (#649)

Fixes #648

lib/view/page/ssh/page.dart

@@ -112,7 +112,7 @@ class SSHPageState extends State<SSHPage>
       2 => true,
       _ => context.isDark,
     };
-    _media = context.media;
+    _media = context.mediaQuery;
 
     _terminalTheme = _isDark ? TerminalThemes.dark : TerminalThemes.light;
     _terminalTheme = _terminalTheme.copyWith(selectionCursor: UIs.primaryColor);

lib/view/page/ssh/tab.dart

@@ -268,7 +268,7 @@ class _AddPage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     const viewPadding = 7.0;
-    final viewWidth = context.media.size.width - 2 * viewPadding;
+    final viewWidth = context.mediaQuery.size.width - 2 * viewPadding;
 
     final itemCount = ServerProvider.servers.length;
     const itemPadding = 1.0;