Switch from selects to radio buttons for local settings, improve styling

app/javascript/flavours/glitch/styles/components/local_settings.scss

@@ -11,8 +11,21 @@
   max-height: 450px;
   overflow: hidden;
 
-  label {
+  label, legend {
     display: block;
+    font-size: 14px;
+  }
+
+  .boolean label, .radio_buttons label {
+    position: relative;
+    padding-left: 28px;
+    padding-top: 3px;
+
+    input {
+      position: absolute;
+      left: 0;
+      top: 0;
+    }
   }
 
   h1 {
@@ -74,7 +87,11 @@
 }
 
 .glitch.local-settings__page__item {
-  select {
-    margin-bottom: 5px;
-  }
+  margin-bottom: 2px;
+}
+
+.glitch.local-settings__page__item.string,
+.glitch.local-settings__page__item.radio_buttons {
+  margin-top: 10px;
+  margin-bottom: 10px;
 }