fix: update mapToStateProps to match changes in TinyMceWidget

[KristinAoki]

Description

This PR fixes pages throwing errors when the WysiwygEditor used due to the redux state variable used in the child TinyMceWidget.

Supporting information

JIRA Ticket: TNL-11665 🔒

The Updates feature in Studio (content > Updates) is giving an “unexpected application error” when course teams click the “+ New update” button. This is blocking course teams from communicating with their learners.

Testing instructions

1. Navigate to the Course Updates page
2. Confirm that existing updates and handouts load
3. Click "+ New update"
4. Confirm that editor loads
5. Add content and click "Post"
6. Click the edit button for an update
7. Confirm that the editor loads
8. Click "Cancel"
9. Click the edit button for handouts
10. Confirm that the editor loads
11. Click "Cancel"
12. Navigate to the Schedule and details page
13. Confirm that the page loads as expected

Other information

This PR is dependent on frontend-lib-content-components #489. The package upgrade generated by #489 will be included in this PR

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.66%. Comparing base (a4859d2) to head (e6f8f53).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1133   +/-   ##
=======================================
  Coverage   92.66%   92.66%           
=======================================
  Files         696      696           
  Lines       12368    12369    +1     
  Branches     2701     2707    +6     
=======================================
+ Hits        11461    11462    +1     
  Misses        875      875           
  Partials       32       32           

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