[UIKit] Avoid useless measure invalidation propagation cycles

[albyrock87]

Description of Change

Invalidation propagation can be quite consuming especially when switching binding context and multiple properties change (i.e. having multiple labels inside a layout, all of them changing the text).

Ti PR avoids useless propagations (same behavior requestLayout intrinsically has on Android).

[dotnet-policy-service]

Hey there @@albyrock87! Thank you so much for your PR! Someone from the team will get assigned to your PR shortly and we'll get it reviewed.

[jfversluis]

/azp run maui-pr-uitests

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[kubaflo]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 3 pipeline(s).

[kubaflo]

I'm reviewing this PR and noticed the iOS CollectionView2 test failed. Is this a known flaky test, or could this be related to the measure invalidation optimization changes?

[albyrock87]

It may have broken it, interesting, I'll look into it, thanks @kubaflo

[kubaflo]

@albyrock87 what's the status of this PR? Do you think it is still needed? If so, can you please resolve conflicts?

[albyrock87]

@albyrock87 what's the status of this PR? Do you think it is still needed? If so, can you please resolve conflicts?

@kubaflo yes I think this is needed.
I'm really overwhelmed right now.
Hopefully I can get back to this in a couple of weeks. Thanks

[MauiBot]

⚠️ Merge Conflict Detected — This PR has merge conflicts with its target branch. Please rebase onto the target branch and resolve the conflicts.