Make titles bolder and add 5% character spacing

Changed content row titles to:
- font-bold (700 weight) for more emphasis
- letter-spacing: 0.05em (5% character spacing)
- Maintains gradient effect from #fafafa to #9ca3af
- More prominent and readable

Co-authored-by: Cursor <cursoragent@cursor.com>

src/components/ContentRow.vue

@@ -1,6 +1,6 @@
 <template>
   <div class="content-row">
-    <h2 class="content-row-title text-xl md:text-2xl font-semibold text-white mb-4 px-4 uppercase">
+    <h2 class="content-row-title text-xl md:text-2xl font-bold text-white mb-4 px-4 uppercase">
       {{ title }}
     </h2>
     
@@ -122,6 +122,7 @@ onUnmounted(() => {
   -webkit-background-clip: text;
   background-clip: text;
   -webkit-text-fill-color: transparent;
+  letter-spacing: 0.05em; /* 5% character spacing */
 }
 
 .glass-card {