Add CHANGELOG for 0.5.0

Update app to use localised timezones everywhere

Remove now-unnecessary timezone workaround in app

Update app test with UTC offset

Fix app bug introduced during refactor

Add specific handling of datetime fields in computed getters/setters

Use localized timestamp in UI, thanks to Sweden

Fix UI date display when updated in starting_materials EditPage

Tweak for edit page to allow upload file modal to load correctly (#937)

Fix css issues in DynamicDataTable (#919)

Update pipenv lockfile

Close database port by default to not assume firewall works (#876)

Fix QR code warning showing when not required (#875)

Deprecate gpt-3.5 series and handle missing models in chatblock (#855)

Release v0.4.4

Release v0.4.3