Bump blueprint-compiler to v12.0
Fixes
error: Adw.AlertDialog is not a Adw.MessageDialog, so it doesn't have responses
at ../data/resources/ui/import_window.blp line 10 column 3:
10 | responses [
Fixes
error: Adw.AlertDialog is not a Adw.MessageDialog, so it doesn't have responses
at ../data/resources/ui/import_window.blp line 10 column 3:
10 | responses [