Priority notifications (#4798)

* new settings screen

* bring back the spinner

* add experimental language

* fix typo, change leading

* integrate priority notifications API

* update package

* use refetch instead of invalidateQueries

* fix read-after-write issue by polling for update

* add spinner for initial load

* rm onmutate, it's overcomplicated

* set error state eagerly

* Change language in description

Co-authored-by: Hailey <me@haileyok.com>

* prettier

* add `Toggle.Platform`

* extract out mutation hook + error state

* rm useless cache mutation

* disambiguate isError and isPending

* rm unused isError

---------

Co-authored-by: Samuel Newman <10959775+mozzius@users.noreply.github.com>
Co-authored-by: Hailey <me@haileyok.com>

src/screens/Messages/Conversation/index.tsx

@@ -106,6 +106,7 @@ function Inner() {
           title={_(msg`Something went wrong`)}
           message={_(msg`We couldn't load this conversation`)}
           onRetry={() => convoState.error.retry()}
+          sideBorders={false}
         />
       </CenteredView>
     )