FE-957: Requests stuck verifying

Summary of changes made

1. There was an unhandled case where nodes not being ready would prevent the user lookup from even running, but the callback was not notified. The callback is now correctly notified of an error.

2. There was an unhandled case where requests still verifying would be marked as failed when the network follower stopped successfuly, but this would not happen if stopNetworkFollower throws an exception. Requests are now marked as failed even when stopNetworkFollower() throws an exception.

3. Added a new request status, "Received" instead of incoming requests being marked as "Verifying". Requests are now only updated to "Verifying" when verification starts.

4. On app launch, before the requests listener would be registered, requests that have "Verifying" status are now updated to "Verification failed" so they can be manually retried.

requested review from @ahmedshehata01

assigned to @kam.elixxir

added 3 commits

• 917e8753 - Call failVerifyingRequests() in init block of ContactsViewModel.
• faf24a3f - Created getContactsRequestsOnce() method for one-time call of
• 54323da4 - Implemented getContactRequests once for failedVerifiedRequests()

Compare with previous version

marked this merge request as ready

added 94 commits

• 54323da4...83f5f2a3 - 93 commits from branch development
• d57a0b67 - Merge branch 'development' into 'FE-957_stuck_verifying'

Compare with previous version

mentioned in commit 73deb3f6

merged