tree: Fix bug with loading detached field index

[alex-pardes]

Description

Fixed a bug in DetachedFieldIndex.setRevisionsForLoadedData where the newly created DetachedField entries incorrectly had a field named latestRevision instead of latestRelevantRevision.

[msfluid-bot]

⯅ @fluid-example/bundle-size-tests: +261 Bytes

Metric Name	Baseline Size	Compare Size	Size Diff
aqueduct.js	461.07 KB	461.11 KB	⯅ +35 Bytes
azureClient.js	558.69 KB	558.74 KB	⯅ +49 Bytes
connectionState.js	680 Bytes	680 Bytes	■ No change
containerRuntime.js	261.33 KB	261.35 KB	⯅ +14 Bytes
fluidFramework.js	402.5 KB	402.52 KB	⯅ +22 Bytes
loader.js	134.17 KB	134.19 KB	⯅ +14 Bytes
map.js	42.43 KB	42.44 KB	⯅ +7 Bytes
matrix.js	146.8 KB	146.8 KB	⯅ +7 Bytes
odspClient.js	525.84 KB	525.89 KB	⯅ +49 Bytes
odspDriver.js	97.8 KB	97.82 KB	⯅ +21 Bytes
odspPrefetchSnapshot.js	42.76 KB	42.78 KB	⯅ +14 Bytes
sharedString.js	163.79 KB	163.8 KB	⯅ +7 Bytes
sharedTree.js	392.97 KB	392.98 KB	⯅ +15 Bytes
Total Size	3.3 MB	3.3 MB	⯅ +261 Bytes

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Baseline commit: dc893fe

Generated by 🚫 dangerJS against a770561