Updated test suite to deal with missing file issues

Added possibility to specify allowed hosts. Fixed some tests to return more reliably. Fixed some issues related to file path checks not working correctly. Redaction should now return review files correctly at redaction and apply changes stages.

Corrected references to blocks objects in test scripts

Fixes to test suites. Minor default package changes (paddleocr not required)

General code changes and reformatting to address code vulnerabilities highlighted by codeQL scan, and black/ruff repplied to code. Fixes/optimisation of Github Actions

Fixed on deprecated Github workflow functions. Applied linter and formatter to code throughout. Added tests for GUI load.

removed tempory test file

Added a test suite based on the functions in cli_redact.py