improve settings components and scss

src/components/settings/SettingsSection.vue

@@ -0,0 +1,21 @@
+<!--
+@license GNU AGPL version 3 or any later version
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+-->
+<template>
+  <div class="cs-settings-section">
+    <slot></slot>
+  </div>
+</template>