feat: Add comprehensive global and component styling for the application, including a dark theme, layout, and various UI elements.

src/renderer/styles.css

@@ -67,6 +67,29 @@ body {
   -webkit-font-smoothing: antialiased;
 }
 
+/* Custom Scrollbar */
+::-webkit-scrollbar {
+  width: 8px;
+  height: 8px;
+}
+
+::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+::-webkit-scrollbar-thumb {
+  background: rgba(255, 255, 255, 0.1);
+  border-radius: 4px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  background: rgba(255, 255, 255, 0.2);
+}
+
+::-webkit-scrollbar-corner {
+  background: transparent;
+}
+
 /* Layout */
 .app {
   display: flex;