Refactor and remove sqlite and replace with MySQL

web/static/css/topbar.css

@@ -0,0 +1,50 @@
+.dropdown-admin-box {
+    min-width: 350px;
+  }
+  
+  .dropdown-notification-box {
+    min-width: 350px;
+  }
+  
+  .dropdown-message-box {
+    min-width: 350px;
+  }
+  
+  .dropdown-with-arrow::before {
+    content: "";
+    position: absolute;
+    top: -8px;
+    right: 3.5px;
+    width: 0;
+    height: 0;
+    border-left: 9px solid transparent;
+    border-right: 9px solid transparent;
+    border-bottom: 9px solid white;
+    z-index: 1;
+  }
+  
+  .dropdown-with-arrow::after {
+    content: "";
+    position: absolute;
+    top: -9px;
+    right: 3.5px;
+    width: 0;
+    height: 0;
+    border-left: 9px solid transparent;
+    border-right: 9px solid transparent;
+    border-bottom: 9px solid rgba(0, 0, 0, 0.15);
+    z-index: 0;
+  }
+  
+.btn-xs {
+    padding: 2px 6px;
+    font-size: 0.75rem;
+    line-height: 1;
+}
+  
+.badge-small {
+    font-size: 0.9rem;
+    padding: 2px 5px;
+    line-height: 1;
+    transform: translate(-50%, -50%);
+}