* Remove dependency on `org.matrix.e2e_cross_signing` unstable feature
Currently, we have some code that relies on the server declaring support for an
`unstable_feature` called `org.matrix.e2e_cross_signing`. There is nothing in
the spec that requires this, so this would make us incompatible with some
server implementations.
The features in question were added in spec v1.1, so we can test for that
instead.
* fix unit test
* test bulk unverified sessions toast behaviour
* unverified sessions toast text tweak
* only show bulk unverified sessions toast when current device is verified
* add Setting for BulkUnverifiedSessionsReminder
* add build config for BulkUnverifiedSessionsReminder
* add more assertions for show/hide toast, fix strict errors
* fix strict error
* add util methods for snoozing in local storage
* rename nag to reminder
* set and read snooze for toast
* test snooze
* remove debug
* strict fix
* remove unused code
* test bulk unverified sessions toast behaviour
* unverified sessions toast text tweak
* only show bulk unverified sessions toast when current device is verified
* add Setting for BulkUnverifiedSessionsReminder
* add build config for BulkUnverifiedSessionsReminder
* add more assertions for show/hide toast, fix strict errors
* fix strict error
* test bulk unverified sessions toast behaviour
* unverified sessions toast text tweak
* only show bulk unverified sessions toast when current device is verified
* add more assertions for show/hide toast, fix strict errors
* fix strict error
* really fix strict error
* record device client inforamtion events on app start
* matrix-client-information -> matrix_client_information
* fix types
* remove another unused export
* add docs link
* add opt in setting for recording device information