Add missing i18n italian translations file (from en.js)
Fix #1969(exporter): set page size
Merge pull request #1971 from PaulL1/1969_exporter_page_size

Fix #1969(exporter): set page size
Merge pull request #1963 from Fabryprog/master

Add missing i18n italian translations file (from en.js)
Fix #1944(tutorial): wording in expandable
Merge pull request #1973 from PaulL1/1944_tutorial

Fix #1944(tutorial): wording in expandable
remove pointless logic

Calculating the total autoWidth separately serves no purpose.
Subtracting it all at once or iteratively has the same result.
fix remainder width not applied to auto width columns

The while loop to distribute extra pixels had a condition that
prevented it from ever running.

I also added a unit test for this logic.