Change 'Rewards per Epoch' to 'Rewards per 24hr

[ChrisHoltDesign]

-We shouldn't assume users know what an Epoch and or need to educate them. (This is not common in interface UX)
-We shouldn't need users to ask or go and find out what the Namada Epoch length is

With an Epoch being 6 hrs we should display shielded rewards in 6/12/24 hour increments via a toggle so users can better understand there reward rates vs staking and using other protocols

I also would recommend removing the EPOCH tracker on the right panel. End users don't need to know this :)

[ChrisHoltDesign]

The 'i' tooltip can then include the information that rewards are automatically added at 6 hr increments

[ChrisHoltDesign]

In light of further internal conversations we should now display the reward rate 'per 24hours' only (Simple copy tweak)

[ChrisHoltDesign]

In light of this it would be great to add a 24hr/7d/30d toggle to the MASP reward calculator

[brentstone]

Superseded by #1745