feat(technical setup): update overlay style

[lavanya-bmw]

Description

Updated overlay styling for connector configuration

Why

To update the overlay styling for the Connector Configuration overlay in accordance with the provided design.

Issue

https://github.com/eclipse-tractusx/portal-frontend/issues/743

Checklist

Please delete options that are not relevant.

• [x] I have followed the contributing guidelines
• [x] I have performed a self-review of my own code
• [x] I have successfully tested my changes locally

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

See analysis details on SonarCloud