Consistently dispatch events, if needed, when setting AppOptions

Currently we'll only dispatch events, for the options that support it, when updating preferences. Since this could potentially lead to inconsistent behaviour, let's avoid any future surprises by *always* dispatching events regardless of how the relevant option is being changed.

Obviously we should then also dispatch events in `AppOptions.set`, and to avoid adding even more duplicated code this method is changed into a wrapper for `AppOptions.setAll`.
While this is technically a tiny bit less efficient I don't think it matters in practice, since outside of development- and debug-mode `AppOptions.set` is barely used.

web/app_options.js

@@ -571,18 +571,7 @@ class AppOptions {
   }
 
   static set(name, value) {
-    const defaultOpt = defaultOptions[name];
-
-    if (
-      !defaultOpt ||
-      !(
-        typeof value === typeof defaultOpt.value ||
-        Type[(typeof value).toUpperCase()] & defaultOpt.type
-      )
-    ) {
-      return;
-    }
-    userOptions.set(name, value);
+    return this.setAll({ [name]: value });
   }
 
   static setAll(options, prefs = false) {
@@ -601,15 +590,16 @@ class AppOptions {
       ) {
         continue;
       }
-      if (prefs) {
-        const { kind } = defaultOpt;
+      const { kind } = defaultOpt;
 
-        if (!(kind & OptionKind.BROWSER || kind & OptionKind.PREFERENCE)) {
-          continue;
-        }
-        if (this.eventBus && kind & OptionKind.EVENT_DISPATCH) {
-          (events ||= new Map()).set(name, userOpt);
-        }
+      if (
+        prefs &&
+        !(kind & OptionKind.BROWSER || kind & OptionKind.PREFERENCE)
+      ) {
+        continue;
+      }
+      if (this.eventBus && kind & OptionKind.EVENT_DISPATCH) {
+        (events ||= new Map()).set(name, userOpt);
       }
       userOptions.set(name, userOpt);
     }