Fix some voice room bugs

src/lib/html.ts

@@ -44,7 +44,10 @@ export const createScroller = ({
     : element.closest(".scroll-container")
 
   const check = async () => {
-    if (container) {
+    const isHidden = (el: Element) =>
+      (el as HTMLElement).offsetParent === null || el.clientHeight === 0
+
+    if (container && !isHidden(container)) {
       // While we have empty space, fill it
       const {scrollY, innerHeight} = window
       const {scrollHeight, scrollTop, clientHeight} = container

src/lib/util.ts

@@ -44,11 +44,15 @@ export const whenAborted = (signal?: AbortSignal) => {
   })
 }
 
-/** Returns a promise that rejects with TimeoutError after ms. Use with Promise.race. */
-export const whenTimeout = (ms: number, opts: {message?: string} = {}) => {
-  return new Promise<never>((_, reject) =>
-    setTimeout(() => reject(new TimeoutError(opts.message)), ms),
-  )
+/**
+ * Returns a promise that rejects with TimeoutError after ms. Use with Promise.race.
+ * Pass an optional signal to clear the timer when that signal aborts (self-cleaning).
+ */
+export const whenTimeout = (ms: number, opts: {message?: string; signal?: AbortSignal} = {}) => {
+  return new Promise<never>((_, reject) => {
+    const timeout = setTimeout(() => reject(new TimeoutError(opts.message)), ms)
+    opts.signal?.addEventListener("abort", () => clearTimeout(timeout), {once: true})
+  })
 }
 
 export const buildUrl = (base: string | URL, ...pathname: string[]) => {