Use `camelCase` for non-constructors

js/background.js

@@ -98,7 +98,7 @@
   console.log('Migrate database without attachments');
   await Migrations1DatabaseWithoutAttachmentData.run({
     Backbone,
-    Database: Whisper.Database,
+    database: Whisper.Database,
   });
 
   console.log('Storage fetch');

js/modules/migrations/migrations_1_database_without_attachment_data.js

@@ -12,5 +12,4 @@ exports.migrations = [
   },
 ];
 
-exports.run = ({ Backbone, Database } = {}) =>
-  runMigrations({ Backbone, database: Database });
+exports.run = runMigrations;