pad: Fix application of `padOptions` values from `settings.json`

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 ### Notable enhancements and fixes
 
+* The following settings from `settings.json` are now applied as expected (they
+  were unintentionally ignored before):
+  * `padOptions.lang`
+  * `padOptions.showChat`
+  * `padOptions.userColor`
+  * `padOptions.userName`
 * Fixed a potential attribute pool corruption bug with `copyPadWithoutHistory`.
 * Mappings created by the `createGroupIfNotExistsFor` HTTP API are now removed
   from the database when the group is deleted.

src/static/js/pad.js

@@ -148,7 +148,7 @@ const getParams = () => {
     let value = clientVars.padOptions[setting.name];
     if (value == null) continue;
     value = value.toString();
-    if (value === setting.checkVal) {
+    if (value === setting.checkVal || setting.checkVal == null) {
       setting.callback(value);
     }
   }