[Update/bugfix] Quick Settings: Expand width.

Config Page: Sidebar: shrink width a bit.
Config Page: Setting Box: each component: Fix gap to prevent sliders cover the label.

src-ui/app/modal_controller/ModalController.module.scss

@@ -22,7 +22,7 @@
     transform: translate(-50%, -50%);
     overflow-y: auto;
     background-color: var(--dark_900_color);
-    width: 60%;
+    width: 80%;
     height: 96%;
     padding: 2rem;
     border-radius: 0.6rem;