fix: properly merge DigitalExperience components W-16646427 (#1496)

* fix: properly merge DE

* test(DE): ignore source content on transformation

* fix: build DE source path for merge

* chore: add comment

* test: add converter UT for DE merge

* chore(release): 12.14.2-dev.0 [skip ci]

* chore: check strategy instead

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Co-authored-by: svc-cli-bot <[email protected]>

Author: cristiand391