fix: toolbar wraps instead of overflowing off-screen

Replace fixed h-12 with flex-wrap + py-2 so toolbar items flow to a
second line on narrower viewports instead of hiding behind overflow.
Remove shrink-0 from the right-side button group so it can wrap too.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: DannyCrews

web/index.html

@@ -84,7 +84,7 @@
   <header class="bg-gray-800 border-b border-gray-700 flex flex-col shrink-0">
   <!-- Page title — visually hidden but announces the app to screen readers -->
   <h1 class="sr-only">Plugin Profiler</h1>
-  <div class="h-12 flex items-center gap-3 px-4 overflow-x-auto">
+  <div class="flex flex-wrap items-center gap-x-3 gap-y-1 px-4 py-2">
     <div class="flex items-center gap-2 mr-2 shrink-0">
       <span class="text-pink-400 font-bold text-sm">&#x25CE;</span>
       <div class="flex flex-col leading-tight min-w-0">
@@ -111,7 +111,7 @@ <h1 class="sr-only">Plugin Profiler</h1>
       <datalist id="node-labels"></datalist>
     </div>
 
-    <div class="ml-auto flex items-center gap-2 shrink-0">
+    <div class="ml-auto flex flex-wrap items-center gap-2">
       <!-- Stats -->
       <span id="plugin-stats" class="text-gray-400 text-xs"></span>