Send DELETE payload as search parameters for delete requests in JS SDK

[kschiffer]

Summary

Quickfix which ensures that payloads for DELETE requests are sent as search parameters in the JS SDK.

Changes

• Add 'delete' as method where payloads are transformed to search parameters.

Testing

• Manual testing

Notes for Reviewers

This also fixes an issue in the Console with deleting user invitations.

Checklist

• Scope: The referenced issue is addressed, there are no unrelated changes.
• Compatibility: The changes are backwards compatible with existing API, storage, configuration and CLI, according to the compatibility commitments in README.md for the chosen target branch.
• Documentation: Relevant documentation is added or updated.
• Changelog: Significant features, behavior changes, deprecations and fixes are added to CHANGELOG.md.
• Commits: Commit messages follow guidelines in CONTRIBUTING.md, there are no fixup commits left.