Changes made for cms4.1 compatible

[FreemanPancake]

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[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 69.38776% with 15 lines in your changes missing coverage. Please review.

Project coverage is 87.82%. Comparing base (7ee4ca9) to head (ae30438).
Report is 10 commits behind head on master.

Files with missing lines	Patch %	Lines
djangocms_pageadmin/admin.py	70.73%	7 Missing and 5 partials ⚠️
djangocms_pageadmin/compat.py	57.14%	2 Missing and 1 partial ⚠️

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HEAD has 3 uploads less than BASE

Flag	BASE (7ee4ca9)	HEAD (ae30438)
	6	3

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #96      +/-   ##
==========================================
- Coverage   95.15%   87.82%   -7.34%     
==========================================
  Files           5        9       +4     
  Lines         392      542     +150     
  Branches       45       55      +10     
==========================================
+ Hits          373      476     +103     
- Misses         10       48      +38     
- Partials        9       18       +9     

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