Describe the bug
After upgrading the APP to 3.3.0 Pachli instantly produces a stack trace when it had an old account with custom Emojis cached.

To Reproduce
Steps to reproduce the behavior:

1. Install some old Pachli version. Probably before bac7784
2. Configure an account e.g. with social.bau-ha.us
3. Upgrade to 3.3.0 (fdroid)
4. Open app

Expected behavior
Maybe fallback to "" for those entites or migrate them.
core/database/src/main/kotlin/app/pachli/core/database/AppDatabase.kt

Versions
Some older pachli version from ca. March 2025
and 3.3.0 from fdroid

Additional context
I think that the cache cleanup after the removal of this @Json(name = "static_url") was insufficient when having bigger version jumps as I had.
While I don't know if moshi can deal with default values this could happen to a lot of entites changed.

The stacktrace abbreviated:

• JsonDataException Required value 'staticUrl' missing at $[1]
• .EmojiJsonAdapter.fromJson 2x
• moshi NullSafeJsonAdapter
• moshi CollectionJsonAdapter (I suspect EmojisEntity or List<PachliAccount> here)
• JsonAdapter.fromJson
• pachli Converters.s (:28 ?)
• .dao.AccountDao_Impl.j (:114)
• ...
• some .room suspending logic

For me I just cleared the app data to resolve the issue.

Affirmation
I have checked other issues for this project (open and closed) and I cannot find one that matches the problem I am reporting. - yes