refactor: strip obvious comments

lib/theme/mono_theme.dart

@@ -118,7 +118,6 @@ ThemeData monoTheme({required bool dark, bool oled = false}) {
       iconColor: c.text,
       textColor: c.text,
     ),
-    // minimal bottom bar
     navigationBarTheme: NavigationBarThemeData(
       backgroundColor: c.bg,
       elevation: 0,

lib/theme/mono_tokens.dart

@@ -1,7 +1,6 @@
 import 'dart:ui';
 import 'package:flutter/material.dart';
 
-/// Helper function to access MonoTokens from context
 MonoTokens tokens(BuildContext context) => Theme.of(context).extension<MonoTokens>()!;
 
 @immutable