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

devplacepy/static/js/VoteManager.js

@@ -1,8 +1,8 @@
-import { Toast } from "./Toast.js";
-import { Http } from "./Http.js";
+import { OptimisticAction } from "./OptimisticAction.js";
 
-export class VoteManager {
+export class VoteManager extends OptimisticAction {
     constructor() {
+        super();
         this.initVoteButtons();
     }
 
@@ -17,16 +17,10 @@ export class VoteManager {
         });
     }
 
-    async cast(form, button) {
+    cast(form, button) {
         const action = form.getAttribute("action");
         const value = form.querySelector('input[name="value"]').value;
-        try {
-            const result = await Http.sendForm(action, { value });
-            this.render(action, result);
-        } catch (error) {
-            console.error("vote failed", error);
-            Toast.flash(button, "Error", 1500);
-        }
+        return this.submit(action, { value }, button, (result) => this.render(action, result));
     }
 
     render(action, result) {