Update the Keycloak theme dependencies, but ensure that the form retains the same appearance afterwards

### Please agree to the following

- [x] I have searched [existing issues](https://github.com/cryptomator/hub/issues?q=) for duplicates
- [x] I agree to follow this project's [Code of Conduct](https://github.com/cryptomator/hub/blob/develop/.github/CODE_OF_CONDUCT.md)

### Summary

In a92f940, fe7e2f4 got partially reverted regarding the keylcoak theme dependency bump as it breaks the theme.

To fix

1. check Tailwind release note against changes
2. bump the dependency again
3. do the required changes
4. verify it looks as it was before

### Motivation

Bump dependencies in the Keycloak theme project and keep the current layout, with fe7e2f4 it is

### Considered Alternatives

_No response_

### Anything else?

In the commit message of a92f940, there are some further information about it.