Change all account actions except "none" to resolve all unresolved reports

Refactor `SuspendAccountService` to be more readable

- Remove --background option
- Add --concurrency(=5) option
- Add progress bars

* Add "--exclude-suspended" to tootctl domains crawl

This new option ignores any instances suspended server-wide as
well as their associated subdomains. This queries all domain
blocks up front, then runs a regexp on each domain. This improves
performance over what may be the obvious implementation, which is
to ask `DomainBlocks.blocked?(domain)` for each domain -- this
hits the DB many times, slowing things down considerably.

* cleaning up code style

* Compiling regex

* Removing ternary operator

* Remove custom emojis on domains purge

* Change message "Removing" to "Removed"

Fix #9817

- Some associations were missing from the clean-up
- Some attributes were not reset on suspension
- Skip federation and streaming deletes when purging a dead domain
- Move account association definitions to concern

Leave `tootctl accounts cull` to simply check removed accounts from
live domains, and skip temporarily unavailable domains, while listing
them in the final output for further action.

Add `tootctl domains purge DOMAIN` to be able to purge a domain from
that list manually