feat: MFE iframe support [POC] #5005

Job	Run time
Types Test	50s
size-check	1m 20s
sm-check	21s
ESLint / Run ESLint	53s
Jest tests / Run Jest	3m 12s
Find pull request target	0s
WDIO	0s
Comment pull request	0s
Pending comment pull request	0s
	6m 36s

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