feat(removebg): add remove-bg integration (#1406)

* feat(remove-bg): add remove-bg integration

* feat(removebg): update name and icon

* docs(removebg): update name and icon

* docs: add remove.bg in available apps

* docs(removebg): correct path

---------

Co-authored-by: Ali BARIN <ali.barin53@gmail.com>

packages/backend/src/apps/removebg/auth/verify-credentials.ts

@@ -0,0 +1,12 @@
+import { IGlobalVariable } from '@automatisch/types';
+
+const verifyCredentials = async ($: IGlobalVariable) => {
+  await $.http.get('/account');
+
+  await $.auth.set({
+    screenName: $.auth.data.screenName,
+    apiKey: $.auth.data.apiKey,
+  });
+};
+
+export default verifyCredentials;