[FR]: Enhance font size in some part of the application

[endrilickollari]

• At the responses at FAQ.

• At "Add coins" modal.

• At transaction history.

• At "Wallet" view, coins font to be bigger.

will also check some good practices for font sizes.

[smk762]

On hold for now - this could be part of an appwide update to scale text etc based on window size or screen res