feat: Updated styling into seperate css files

frontend/src/assets/styles/scoped/pages/PublicSpace.css

@@ -0,0 +1,71 @@
+.public-layout {
+    display: flex;
+    flex-direction: column;
+    min-height: 100vh;
+}
+
+.public-body {
+    flex: 1;
+    overflow: hidden;
+    position: relative;
+}
+
+.public-sidebar {
+    width: 280px;
+    overflow-y: auto;
+    flex-shrink: 0;
+}
+
+.note-item {
+    border-radius: 6px;
+    padding: 0.5rem 0.75rem;
+    background: transparent;
+    border: 1px solid transparent;
+    transition: background 0.15s;
+}
+
+.note-item:hover {
+    background: #e9ecef;
+}
+
+.note-item.active {
+    background: #dbe4ff;
+    border-color: #748ffc;
+    color: #364fc7;
+}
+
+.note-item.is-featured {
+    background: var(--color-surface)4e6;
+    border-color: #ffd8a8;
+}
+
+.note-item.is-featured:hover {
+    background: #ffe8cc;
+}
+
+@media (max-width: 768px) {
+    .public-sidebar-backdrop {
+        position: fixed;
+        left: 0;
+        right: 0;
+        bottom: 0;
+        background-color: rgba(0, 0, 0, 0.5);
+        z-index: 1090;
+    }
+
+    .public-sidebar {
+        position: fixed;
+        left: 0;
+        bottom: 0;
+        z-index: 1095;
+        transform: translateX(-100%);
+        transition: transform 0.3s ease-in-out;
+        box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
+    }
+
+    .public-sidebar.open {
+        transform: translateX(0);
+    }
+}
+
+