Revert "DEV: Remove usage of {{action}} modifiers (#18333)" (#18469)

This reverts commit ba27ee1637.

We found some issues with handling of cmd/ctrl/shift + click on `<a` elements

plugins/poll/assets/javascripts/controllers/poll-ui-builder.js

@@ -398,10 +398,4 @@ export default Controller.extend(ModalFunctionality, {
   removeOption(option) {
     this.pollOptions.removeObject(option);
   },
-
-  @action
-  updatePollType(pollType, event) {
-    event?.preventDefault();
-    this.pollType = pollType;
-  },
 });

plugins/poll/assets/javascripts/discourse/templates/modal/poll-ui-builder.hbs

@@ -1,15 +1,15 @@
 <DModalBody @title="poll.ui_builder.title" @class="poll-ui-builder">
   <div class="input-group poll-type">
-    <a href {{on "click" (fn this.updatePollType "regular")}} class="poll-type-value {{if this.isRegular "active"}}">
+    <a href {{action (mut this.pollType) "regular"}} class="poll-type-value {{if this.isRegular "active"}}">
       {{i18n "poll.ui_builder.poll_type.regular"}}
     </a>
 
-    <a href {{on "click" (fn this.updatePollType "multiple")}} class="poll-type-value {{if this.isMultiple "active"}}">
+    <a href {{action (mut this.pollType) "multiple"}} class="poll-type-value {{if this.isMultiple "active"}}">
       {{i18n "poll.ui_builder.poll_type.multiple"}}
     </a>
 
     {{#if this.showNumber}}
-      <a href {{on "click" (fn this.updatePollType "number")}} class="poll-type-value {{if this.isNumber "active"}}">
+      <a href {{action (mut this.pollType) "number"}} class="poll-type-value {{if this.isNumber "active"}}">
         {{i18n "poll.ui_builder.poll_type.number"}}
       </a>
     {{/if}}