- Plugin.cs: mark RetentionSweepRunning volatile so the ImGui thread
reads the latest value without a stale register-cached copy
- EmoteCache.cs: reset State to Unloaded on exception so a later
trigger can retry instead of being blocked by the early-out
- Settings.cs: switch the SaveAndClose / Discard buttons to Allman
bracing for consistency with the rest of the file, and include the
ItemSpacing in the Ko-fi-button right-edge calculation
- Privacy.cs: add a saved-policy hint above the manual retention
Ctrl+Shift button so the existing Cleanup wording pattern is
matched here too
- HellionStrings: drop seven unreferenced keys (Theme_Heading,
Migration_Notification_*, Migration_Webinterface_Removed_*,
AutoTellTabs_Migration_*) and their EN/DE values, add the new
Retention_Help_SavedNote string