Website 'Wallets' page design adjustments

[Innkst]

Description GitHub and GitLab icons have a white background

Steps To Reproduce Steps to reproduce the behavior:

1. Go to 'https://tezostaquito.io/docs/wallets'
2. See the Source column of the table

Expected behavior

1. Source icons have a transparent background, so it looks well in both light and dark modes.
2. TZIP-10 column caption can be the same as the other ones
3. Can the font for the tables be increased? It looks very tiny in comparison to the rest of the text. NOTE: This applies to the style of all the tables on the website. Hopefully, this just needs to be changed in 1 place.

Screenshots

Desktop (please complete the following information):

• OS: Windows
• Browser: Chrome
• Version 101.0.4951.67

Additional context Add any other context about the problem here.