🐛 Bug: Links on Home page harder to guess in Dark Mode

[Adi-204]

Describe the bug

Links on home page are underline with black which makes it harder to guess.

Steps To Reproduce

1. Go to Home Page (https://json-schema.org/).
2. Scroll down to Sponsors section

Expected Behavior

Two suggested design changes -

1. Change underline color to white for dark mode.

2. Change all links color to blue and underline as done in other pages. Example like text "discussing" in below screenshot
   

Screenshots

No response

Device Information [optional]

- OS:
- Browser:
- version:

Are you working on this issue?

Yes

Do you think this work might require an [Architectural Decision Record (ADR)]? (significant or noteworthy)

No

[Adi-204]

Please assign me the issue I would like to contribute, which of above two suggestions I should go with.

[DhairyaMajmudar]

Go ahead @Adi-204, looking forward for your PR