Update polls UX to match EX Mobile and improve accessibility (#31245)

* Remove poll ended event UI.

* Add better aria labels for screen reader and change ui to match mobile UX.

- Checkmark and progress bar are only green if the poll is ended.
- Updated the Poll icon for open and ended state and added labels
- Right align total votes count and update text

* Update jest tests

* Fix total votes alignment

* Fix screenshots

* Update snapshot

* Update e2e tests

* fix more e2e tests

* Clean up CSS

* Add back text for undisclosed poll (total should be hidden)

* Update checkmark and progress colours to more closely match mobile

* Don't compute optionNumber on each render

* "Total votes" working doesn't really work with the current web behaviour

Web doesn't show the votes for undisclosed polls(mobile does). reverting and that behaviour change should be addressed in a different PR(or on mobile.).

* Fix e2e test

* Update screenshots

* Move positioning of total votes label back to the left side

as we are no longer changing the copy to match mobile

* Don't concatenate label

* Fix translation order

* Remove unneeded translations

* remove O(n^2) code

* fix snapshots

* Fix check style in poll option

* prettier

src/components/views/messages/MessageEvent.tsx

@@ -15,7 +15,6 @@ import {
     MatrixEventEvent,
     M_BEACON_INFO,
     M_LOCATION,
-    M_POLL_END,
     M_POLL_START,
     type IContent,
 } from "matrix-js-sdk/src/matrix";
@@ -34,7 +33,6 @@ import MVoiceOrAudioBody from "./MVoiceOrAudioBody";
 import MVideoBody from "./MVideoBody";
 import MStickerBody from "./MStickerBody";
 import MPollBody from "./MPollBody";
-import { MPollEndBody } from "./MPollEndBody";
 import MLocationBody from "./MLocationBody";
 import MjolnirBody from "./MjolnirBody";
 import MBeaconBody from "./MBeaconBody";
@@ -75,8 +73,6 @@ const baseEvTypes = new Map<string, React.ComponentType<IBodyProps>>([
     [EventType.Sticker, MStickerBody],
     [M_POLL_START.name, MPollBody],
     [M_POLL_START.altName, MPollBody],
-    [M_POLL_END.name, MPollEndBody],
-    [M_POLL_END.altName, MPollEndBody],
     [M_BEACON_INFO.name, MBeaconBody],
     [M_BEACON_INFO.altName, MBeaconBody],
 ]);