Hotfix: disable staking

[koredefashokun]

Description

This PR temporarily disables staking while the contracts are paused.

[vercel]

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Name	Status	Preview	Updated (UTC)
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[codecov]

Codecov Report

Merging #2601 (49408b4) into main (7dd3b45) will decrease coverage by 0.02%.
The diff coverage is 27.77%.

@@            Coverage Diff             @@
##             main    #2601      +/-   ##
==========================================
- Coverage   50.75%   50.73%   -0.02%     
==========================================
  Files         378      378              
  Lines       11371    11381      +10     
  Branches     2678     2683       +5     
==========================================
+ Hits         5771     5774       +3     
- Misses       5379     5386       +7     
  Partials      221      221              

Impacted Files	Coverage Δ
packages/app/src/state/staking/selectors.ts	41.97% <11.11%> (-0.70%)	⬇️
...p/src/sections/shared/Layout/HomeLayout/Banner.tsx	42.22% <16.66%> (-2.78%)	⬇️
packages/app/src/constants/announcement.ts	87.50% <100.00%> (+9.72%)	⬆️
packages/app/src/constants/ui.ts	100.00% <100.00%> (ø)

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