feat: now citations can be searched by doi from the report's molecule…

… relation manager.

app/Filament/Dashboard/Resources/ReportResource/RelationManagers/CitationsRelationManager.php

@@ -36,7 +36,7 @@ public function table(Table $table): Table
             ->headerActions([
                 Tables\Actions\AttachAction::make()
                     ->multiple()
-                    ->recordSelectSearchColumns(['title', 'authors']),
+                    ->recordSelectSearchColumns(['title', 'authors', 'doi']),
             ])
             ->actions([
                 Tables\Actions\DetachAction::make(),