Backlog

[Integral]

This is continuous backlog PR, I will describe what it is solving below.

• [x] Table commands weren't enabled in Metadata view as it was described in #1243
• [x] External link editor wasn't activated for Metadata view as it was described in #1180, plus we didn't render overlay for Metadata view
• [x] Xref editor wasn't activated for Metadata view
• [x] There was a different set of content available for table cells in manuscript and metadata views, so I've added some more in Metadata view:
• inline formula and graphics
• bibliography, figure, formula, footnote, supplementary file, table references
• [x] Cleanup:
• for the sake of consistency we are now using static getters refType in those models which can be referred (we are using them during cross reference insertion commands registration)
• another LGTM issue with never evaluated line of code
• [x] fix incorrect extension of placeholder image from kitchen sink example #1158

[codecov[bot]]

Codecov Report

Merging #1246 into master will increase coverage by 0.05%. The diff coverage is 100%.

@@            Coverage Diff            @@
##           master   #1246      +/-   ##
=========================================
+ Coverage   88.15%   88.2%   +0.05%     
=========================================
  Files         409     409              
  Lines        9014    9049      +35     
=========================================
+ Hits         7946    7982      +36     
+ Misses       1068    1067       -1

Impacted Files	Coverage Δ
src/article/shared/InsertCrossReferenceCommand.js	100% <ø> (ø)
src/article/shared/InsertExtLinkCommand.js	100% <ø> (ø)
...icle/shared/InsertFootnoteCrossReferenceCommand.js	100% <ø> (ø)
src/article/shared/InsertInlineNodeCommand.js	85.71% <ø> (ø)
src/article/shared/InsertInlineGraphicCommand.js	100% <ø> (ø)
src/article/shared/InsertInlineFormulaCommand.js	100% <ø> (ø)
src/article/shared/EditXrefTool.js	100% <ø> (ø)
src/article/editor/EditorPackage.js	100% <ø> (ø)	:arrow_up:
src/kit/model/createValueModel.js	73.07% <ø> (+1.64%)	:arrow_up:
src/article/shared/InsertInlineGraphicTool.js	100% <ø> (ø)
... and 8 more

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[obuchtala]

Looking good! Thx!