drop all JobIntentService implementations and use WorkManager instead

[DenBond7]

Before starting need to drop all JobIntentService implementations and use WorkManager instead.

Originally posted by @DenBond7 in #1631 (comment)

• Migrate EmailAndNameUpdaterService to WorkManager #1818
• Migrate ActionQueueIntentService to WorkManager or use another approach #1819
• Migrate FeedbackJobIntentService to WorkManager or use another approach #1820
• Migrate PrepareOutgoingMessagesJobIntentService to WorkManager #1821