chore: bump version to 3.8.1 for upcoming hotfix release

refactor: enhance error processing in HttpClient

feat: Support unquoted TXT records with improved validation checks. F…

…ixes poweradmin#510

Update version.

Fixes poweradmin#526: Search view pagination was incorrect.

Move bootstrap to vendor folder.

Restored previous code, the validation function has side effects.

Updated minimum requirements.

Removed debugging stuff.

Updated version.