feat(navigation): hard-switch to Zibll navigation and Font Awesome 5

assets/vendor/zibll/css/page-navs.css

@@ -0,0 +1,35 @@
+.cat-group {
+  height: 200px;
+  background: var(--body-bg-color);
+  border: 1px solid var(--main-border-color);
+  border-radius: 4px;
+  overflow: hidden;
+  padding: 5px;
+  overflow-y: auto;
+}
+.sortable-cat-item {
+  background: var(--main-border-color);
+  padding: 4px;
+  -webkit-transition: 0.2s;
+  transition: 0.2s;
+  border-radius: 4px;
+  margin: 2px;
+  display: inline-block;
+  cursor: -webkit-grab;
+  cursor: grab;
+  width: calc(100% - 15px);
+  min-width: 100px;
+}
+.sortable-cat-item .badge {
+  margin-left: 4px;
+  background: var(--main-border-color);
+  color: inherit;
+}
+#cat-sortable-ok .sortable-cat-item {
+  background: rgba(73, 214, 253, 0.1);
+  color: #069cf3;
+}
+.sortable-cat-item.sortable-selected {
+  background: rgba(251, 82, 82, 0.1) !important;
+  color: #fb5454 !important;
+}