Added Cypress E2E tests

[sreichel]

Description (*)

Starting E2E test with cypress

I have only added some basic tests, some related to past issues/PRs ...

• some JS form validation (works in front- and backend)
• check for form_key existence
• check if admin menu has correct "active" class
• check content lenght for advanced search
• ...
• added to github workflow

Related Pull Requests

• see Removed docker setup #4166 (comment)

Manual testing scenarios (*)

1. install DDEV
2. install cypress-addon
3. run

• ddev cypress-open --config-file .cypress.config.js for browser
• ddev cypress-run --config-file .cypress.config.js for CLI

Questions or comments

I thinks its easy to use and write tests ... maybe we can add it to our workflow to make issues/fixes reproducable.

[sreichel]

Code-changes:

• added html-id to confog sections (for better access)
• fix: added missing icon-head css class
• fix: impoved validation for sitemap priority config setting

[colinmollenhour]

Awesome work, this is going to be a huge improvement to being able to push more code and have fewer regressions.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
1 Accepted issue

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarQube Cloud