Add user type column to csv logs export

[AlexVelezLl]

Summary

• Adds user type column to csv logs export
• Adds a labels dictionary in the user_kinds module to store the translated user kind labels in the backend.

References

Closes #12674.

Reviewer guidance

• Generate a session log, and summary logs for different types of users.
• Go to Facility > Data and generate session and summary logs.
• Check that users have the correct user type

[github-actions]

Build Artifacts

Asset type	Download link
PEX file	kolibri-0.19.0a0.dev0_git.97.ge359977e.pex
Windows Installer (EXE)	kolibri-0.19.0a0.dev0+git.97.ge359977e-windows-setup-unsigned.exe
Debian Package	kolibri_0.19.0a0.dev0+git.97.ge359977e-0ubuntu1_all.deb
Mac Installer (DMG)	kolibri-0.19.0a0.dev0+git.97.ge359977e.dmg
Android Package (APK)	kolibri-0.19.0a0.dev0+git.97.ge359977e-0.1.4-debug.apk
Raspberry Pi Image	kolibri-pi-image-0.19.0a0.dev0+git.97.ge359977e.zip
TAR file	kolibri-0.19.0a0.dev0+git.97.ge359977e.tar.gz
WHL file	kolibri-0.19.0a0.dev0+git.97.ge359977e-py2.py3-none-any.whl

[rtibbles]

Code changes make sense to me - don't see anything in here that might be a performance concern either.

[pcenov]

Thanks @AlexVelezLl - I confirm that the User type column is added in both the session and summary logs csv files and I am seeing the correct values in it.

[AlexVelezLl]

Thanks @pcenov @rtibbles!