Add support for admins to configure KefinTweaks from Jellyfin UI

scripts/configuration.css

@@ -0,0 +1,64 @@
+.kefin-config-button {
+    -webkit-tap-highlight-color: transparent;
+    background-color: transparent;
+    cursor: pointer;
+    user-select: none;
+    vertical-align: middle;
+    appearance: none;
+    color: inherit;
+    display: flex;
+    -webkit-box-flex: 1;
+    flex-grow: 1;
+    -webkit-box-pack: start;
+    justify-content: flex-start;
+    -webkit-box-align: center;
+    align-items: center;
+    position: relative;
+    min-width: 0px;
+    box-sizing: border-box;
+    text-align: left;
+    padding-top: 8px;
+    padding-bottom: 8px;
+    padding-left: 16px;
+    padding-right: 16px;
+    outline: 0px;
+    border-width: 0px;
+    border-style: initial;
+    border-color: initial;
+    border-image: initial;
+    margin: 0px;
+    border-radius: 0px;
+    text-decoration: none;
+    transition: background-color 150ms cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+.customMenuOptions {
+    display: flex;
+    flex-direction: column;
+}
+
+.customMenuOptions > * {
+    order: 1;
+}
+
+a[href="#"].navMenuOption:has(.build) {
+    order: 9999;
+    margin-top: 2em !important;
+    position: relative;
+}
+
+a[href="#"].navMenuOption:has(.build)::before {
+    content: 'KefinTweaks';
+    position: absolute;
+    top: -1.5em;
+    left: 0;
+}
+
+.listItemContent:has([data-skin-name]) {
+    justify-content: space-between;
+    width: 100%;
+}
+
+#kefinTweaksConfigModal .listItem {
+    align-items: start;
+}