feat: Convert all app files to JS

packages/backend/src/apps/pushover/auth/verify-credentials.js

@@ -0,0 +1,24 @@
+import HttpError from '../../../errors/http.js';
+
+const verifyCredentials = async ($) => {
+  try {
+    await $.http.post(`/1/users/validate.json`, {
+      token: $.auth.data.apiToken,
+      user: $.auth.data.userKey,
+    });
+  } catch (error) {
+    const noDeviceError = 'user is valid but has no active devices';
+    const hasNoDeviceError =
+      error.response?.data?.errors?.includes(noDeviceError);
+
+    if (!hasNoDeviceError) {
+      throw new HttpError(error);
+    }
+  }
+
+  await $.auth.set({
+    screenName: $.auth.data.screenName,
+  });
+};
+
+export default verifyCredentials;