Support paying DOT as a fee

[KitHat]

Adding support for paying dot as a fee

PR Checklist

• Tests
• Documentation
• Fixes for DOT as a fee  openzeppelin-pallet-abstractions#70 merged
• branches updated

[netlify]

✅ Deploy Preview for docs-oz-polkadot canceled.

Name	Link
🔨 Latest commit	a0536b8
🔍 Latest deploy log	https://app.netlify.com/sites/docs-oz-polkadot/deploys/67b3641aa7c7d60008c345cc

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.16%. Comparing base (67c2f2b) to head (a0536b8).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #404      +/-   ##
==========================================
+ Coverage   77.51%   78.16%   +0.64%     
==========================================
  Files          17       17              
  Lines        1895     1951      +56     
  Branches     1895     1951      +56     
==========================================
+ Hits         1469     1525      +56     
  Misses        363      363              
  Partials       63       63              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[4meta5]

We should merge this into main ASAP because it is blocking the dependency upgrade due to the fact that its changes to pallet-abstractions were merged into its main branch before the upgrade PR