Warning: Incorrect enctype reported for webmanifest

[camiicode]

Problem:
The browser reports a warning related to an incorrect enctype
for the manifest.webmanifest file.

The warning indicates that the enctype should be set to either
application/x-www-form-urlencoded or multipart/form-data,
even though webmanifest files do not use enctype attributes.

This creates console noise and potential confusion
when reviewing PWA warnings.

Expected behavior:
No enctype-related warnings should be reported
for the webmanifest file.

Notes:
This appears to be a browser-level warning rather than
a functional issue, but it should be reviewed to ensure
the manifest is served with the correct content type.

Steps to reproduce:

1. Open the app in the browser.
2. Open DevTools → Application → Manifest.
3. Observe the enctype warning in the console.

Acceptance criteria:

• No enctype-related warnings appear in the console.
• The manifest is served with the correct content type
  (application/manifest+json).
• PWA functionality remains unaffected.