Merge features: Fix "take attributes from selected feature"
Fix #7668
Fix #7922
Merge pull request #699 from qgis-jp/make_pull_req_from_ja

update GUI translation ja
translation update: ja and da_DK thanks to contributors
translation update: nl and no
add spacer to keep attributes on top
Fix #8225
append required date format to field label in attribute dialog
Update core plugins to use the new icons by default.
fix warning
german translation update
fix #7217
set provider request attribute supset only if requested, fixes 7112 and 7267
update translation ja include some improvement by Minoru Akagi