Change color for selected option in dark mode on https://velocityx.dev

Describe the bug
Due to low contrast, selected option in dark mode on https://velocityx.dev/ is barely visible.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'https://velocityx.dev/'
2. Click on 'Toggle Dark mode button'
3. Click on any drawer item
4. See selected color

Expected behavior
Expecting higher contrast. Use some other color.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.

[XxThunderBlastxX]

From where do I get the repo of the website ??. I want to contribute for this hacktoberfest.

[anmolsingh0219]

Hey I want to try this, can you assign it to me?