feat(request): support to persisted queries encoded variables

[gtkatakura]

Description

1. Some support for persisted queries out of the box like trying to decode the variables by default

Screenshot

Checklist

• [x] Displays correctly with both dark and light mode (see useTheme.ts)
• [x] Unit/Integration tests added

[warrenday]

Thanks for the improvement and general housekeeping @gtkatakura PR looks good.