1758 css refactor part 2

[pmolnar-dev]

Checklist

• [x] I have followed (at least) the PR section of the contributing guide.
• [x] I fixed all necessary PR warnings
• [x] The commit history is clean
• [x] The E2E tests are passing
• [x] If possible, the issue has been divided into more subtasks
• [x] I did a self review before requesting a review from another team member

Description

• part 2 of css refactor where rest of js files and styles are changed

Closes #1758

[openkfwCI]

	Notes	Time
:white_check_mark:	Note for Reviewer: E2E tests on pipeline 58407 on remote server succeeded	Mon, 08 Apr 2024 15:48:28 +0000

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