Implement rFOX staking flow

[0xean]

depends on https://github.com/shapeshift/rFOX/issues/36

https://www.figma.com/file/REOouo0sAuOhoD597yZEGE/rFOX?type=design&node-id=1-250&mode=design&t=3SyS9nLEG2D8oiXp-0

AC

• wire up components created in #6738
• copy ABIs into web from rFOX
• implement approval transaction
• implement staking transaction
• validate rune address input
• balance for gas, approval amounts, balance for FOX on arb
• check for paused states that should block user actions (global pause or pause for deposits)
• not shown in the mocks: add row in the staking details to show the unlock period and also the "I understand" component that shows the cool down period
• test against arb 1 contracts deployed

[0xean]

https://github.com/shapeshift/web/issues/6738 to be completed seperately.