feat: replace raw setInterval polling with shared Poller utility across six frontend modules

devplacepy/static/js/ReactionBar.js

@@ -1,7 +1,8 @@
-import { Http } from "./Http.js";
+import { OptimisticAction } from "./OptimisticAction.js";
 
-export class ReactionBar {
+export class ReactionBar extends OptimisticAction {
     constructor() {
+        super();
         document.addEventListener("click", (event) => this.onClick(event));
     }
 
@@ -42,12 +43,7 @@ export class ReactionBar {
         const type = bar.dataset.reactionType;
         const uid = bar.dataset.reactionUid;
         const emoji = trigger.dataset.reactionEmoji;
-        try {
-            const result = await Http.sendForm(`/reactions/${type}/${uid}`, { emoji });
-            this.render(bar, result);
-        } catch (error) {
-            console.error("reaction failed", error);
-        }
+        await this.submit(`/reactions/${type}/${uid}`, { emoji }, null, (result) => this.render(bar, result));
         this.closeAllPalettes();
     }