feat(DTFS2-7300): fix effective from date page test

[BethThomas141]

Introduction :pencil2:

Fix a failing test - currently the page following the effective from date page is not implemented, and so clicking 'continue' on the effective from date page goes to the 'Not found' page which doesn't have a 'back' button.

Resolution :heavy_check_mark:

This PR fixes this by instead returning to the effective from date page by using the URL instead of the back button

Miscellaneous :heavy_plus_sign:

• Set the GitHub actions feature flags to boolean instead of string.

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud