ENG-1243 refactor cms widgets

[ichalagashvili]

[entando-jx]

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[entando-jx]

@ichalagashvili: The following test failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
pr-build	6018ddb86d43203c4b900d32c9d004f40b23cf4c	link	/test this

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