Fix LT-11746: Make Preview in Lexicon Edit aware of publication

[jtmaxwell3]

This fixes https://jira.sil.org/browse/LT-11746. I refactored IsObjectVisible and GiveSimpleWarning in XhtmlDocView so that their code could be shared by XhtmlRecordDocView.

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This change is 

[github-actions]

NUnit Tests

    1 files  ±0      1 suites  ±0   6m 12s ⏱️ +23s
4 074 tests ±0  4 003 ✅ ±0  71 💤 ±0  0 ❌ ±0 
4 083 runs  ±0  4 012 ✅ ±0  71 💤 ±0  0 ❌ ±0 

Results for commit be65cc0. ± Comparison against base commit b6ac397.

[jasonleenaylor]

Src/xWorks/XhtmlDocView.cs line 230 at r1 (raw file):

		}

		internal static bool IsObjectVisible(int hvoTarget, LcmCache cache, PropertyTable propertyTable, out DictionaryConfigurationController.ExclusionReasonCode xrc)

Since we are exposing this to other callers we should probably guard for null cache and propertyTable.

[jasonleenaylor]

@jasonleenaylor reviewed 3 files and all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on jtmaxwell3).