Add gender to person CSV

[lakridserne]

No description provided.

[what-the-diff]

PR Summary

• Inclusion of Køn (Gender) in Data Export
  The updated code now allows the system to include the 'Gender' field when exporting data files. This gives you more comprehensive information about each member in your export file.

• Implementation of gender_text() Function
  A new function called gender_text() has been introduced. This ensures the smooth concatenation (joining) of the gender value to the existing data string. This update enhances the readability and organization of the exported data set.

[rasmusselsmark]

Ser korrekt ud (har dog ikke testet lokalt)