Make relm4 app async and update last_opened in db

src/main.rs

@@ -59,17 +59,22 @@ async fn main() {
     let mut sheets = validation_result.validated_sheets;
     sheets.append(&mut validation_result.updated_sheets);
 
-    let sheets_and_orphans = SheetsAndOrphans { sheets, orphans };
+    let app_init_data = AppInitData {
+        sheets,
+        orphans,
+        database,
+    };
 
     let app = RelmApp::new("de.frajul.sheet-organizer");
     // Pass empty command line args to allow my own parsing
     app.with_args(Vec::new())
-        .run::<AppModel>(sheets_and_orphans);
+        .run_async::<AppModel>(app_init_data);
 }
 
-pub struct SheetsAndOrphans {
+pub struct AppInitData {
     sheets: Vec<Sheet>,
     orphans: Vec<OrphanFile>,
+    database: Database,
 }
 
 pub struct FileValidationResult {