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

res/css/_components.pcss

@@ -238,7 +238,6 @@
 @import "./views/messages/_MLocationBody.pcss";
 @import "./views/messages/_MNoticeBody.pcss";
 @import "./views/messages/_MPollBody.pcss";
-@import "./views/messages/_MPollEndBody.pcss";
 @import "./views/messages/_MStickerBody.pcss";
 @import "./views/messages/_MTextBody.pcss";
 @import "./views/messages/_MVideoBody.pcss";