**Short description of error**
Some translations in menus in Blender 2.90 are missing. I checked the code and found the missing translations may be the //text// argument from //bpy.types.UILayout.operator()//. Also, compared to 2.83, these translation msgid is missing in produced *.po file.
However as a newbie, I'm not able to fix it so I put an issue for someone who would like to involve in.
**Exact steps for others to reproduce the error**
Just start up in another language apart from English.