FIX - Cannot type in the Link Input dialog when in a paragraph

[tg-ephox]

Description

fixes #3466
fixes #3467

How Has This Been Tested?

Manual, unit tests

Screenshots (jpeg or gifs if applicable):

Types of changes

Bug fix

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows has proper inline documentation.

[codecov]

Codecov Report

Merging #3468 into master will increase coverage by 0.08%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #3468      +/-   ##
==========================================
+ Coverage   33.83%   33.92%   +0.08%     
==========================================
  Files         253      253              
  Lines        6741     6745       +4     
  Branches     1223     1225       +2     
==========================================
+ Hits         2281     2288       +7     
+ Misses       3761     3759       -2     
+ Partials      699      698       -1

Impacted Files	Coverage Δ
components/slot-fill/fill.js	75% <100%> (+25%)	⬆️

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[youknowriad]

Good catch. Nice fix and test 👍