Change colour value for $cyan (info)

[drmenzelit]

Pull Request for Issue # .

Summary of Changes

Change hsl values for colour variable $cyan to make it more harmonic with the template colours

Testing Instructions

Run npm run build:css

Expected result

The info button is more blue

Actual result

[richard67]

It's more clear why this change is good when showing the buttons together with the header.

Before PR:

The info buttons doesn't really fit to the template colours.

After PR:

Looks much better.

[richard67]

The variable name "cyan" might be misleading now, but to change this would mean a lot more changes to be done, because that's a Bootstrap 4 variable.

[richard67]

I have tested this PR ✅ with success.

[richard67]

Thanks!