Fix LT-21970: S/R failure with reordering data entry fields

[jtmaxwell3]

It couldn't validate:

because of the lack of around the part. I changed the validator and added a unit test for both layout and merge.

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This change is 

[github-actions]

Test Results

881 tests  +2   767 ✅ +2   3m 26s ⏱️ ±0s
108 suites ±0    25 💤 ±0 
  1 files   ±0     5 ❌ ±0   84 🔥 ±0 

For more details on these failures and errors, see this check.

Results for commit 2f394ce. ± Comparison against base commit 5e6d4dd.

♻️ This comment has been updated with latest results.

[jasonleenaylor]

Reviewed 1 of 2 files at r1.
Reviewable status: 1 of 2 files reviewed, all discussions resolved

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src/LibFLExBridge-ChorusPlugin/Handling/ConfigLayout/FieldWorksConfigurationLayoutValidator.cs line 129 at r1 (raw file):

					{
						ValidatePartElement(grandChildElement);
					}

⛏️ When a conditional contains a multi-line statement we prefer to have braces for code readability (on single line conditionals the braces are optional)

Code quote:

				if (childElement.Name.LocalName == "indent")
					foreach (var grandChildElement in childElement.Elements())
					{
						ValidatePartElement(grandChildElement);
					}

[jasonleenaylor]

Reviewed 1 of 2 files at r1, 1 of 1 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @jtmaxwell3)