[TASK] Page module edit icon for language overlay

Page modules brings multiple views to work with multi-language
content: columns / language / quick. In columns mode a single
translation can be fixated by "language" drop down.

Adds ability to edit language overlay record in column view
with only one language.

Change-Id: I04594461cad4c8e4a0a296111c1a4c40e3263b4c
Resolves: #39107
Releases: 6.2