opt. & fix

- fix: pve text color
- opt.: rm ssh tab appbar
- opt.: ssh tab only display fab on `Add` page

lib/view/widget/choice_chip.dart

@@ -15,13 +15,14 @@ class ChoiceChipX<T> extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return ChoiceChip(
-      label: Text(label),
-      side: BorderSide.none,
-      padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 1),
-      labelPadding: const EdgeInsets.symmetric(horizontal: 5),
-      selected: state.selected(value),
-      onSelected: state.onSelected(value),
+    return Padding(
+      padding: const EdgeInsets.symmetric(vertical: 3, horizontal: 3),
+      child: ChoiceChip(
+        label: Text(label),
+        side: BorderSide.none,
+        selected: state.selected(value),
+        onSelected: state.onSelected(value),
+      ),
     );
   }
 }