Pick cool colors for Dark Mode

[dtemir]

Right now, the dark mode is ugly, not gonna lie 😄

We need to pick new colors for the general color scheme. @jagnani73 suggested https://coolors.co/ to get a new palette.

So if somebody is interested in design and color picking, feel free to dive in main.scss and update those colors with new ideas! You can also send-in your version to discord for our support 🦸

[jagnani73]

Ill take up this issue!