Padding of list with Markdown checkboxes is incorrect.

[RokeJulianLockhart]

• 1. 1.  [ ] Disallow creating `mailTo:base-address+plus-address@anonaddy.com`.
     1.  [ ] Perhaps, correct to `mailTo:base-address@anonaddy.com`.
     1.  However, do not modify current direction functionality.

  2. 

     The number renders further to the left than the <input type="checkbox">/[ ] does, which shouldn't occur.

• 1. 1.  [ ] Disallow creating `mailTo:base-address+plus-address@anonaddy.com`.
     1.  [ ] Perhaps, correct to `mailTo:base-address@anonaddy.com`.
         1.  However, do not modify current direction functionality.

  2. 

     The same as before.

• 1. 1.  [ ] Disallow creating `mailTo:base-address+plus-address@anonaddy.com`.
     1.  [ ] Perhaps, correct to `mailTo:base-address@anonaddy.com`.
     
         1.  However, do not modify current direction functionality.

  2. 

     The vertical list padding is absurd.

[github-actions[bot]]

Stale issue message

[RokeJulianLockhart]

https://github.com/github/markup/issues/1857#issuecomment-2399669489

@GitHub-Actions, reopen this.