Add Swedish translation for admin messages

Adds messages_sv.properties to provide Swedish translations for all admin interface messages including password validation, LDAP errors, client URL validation, and error messages.

Closes #45281

Signed-off-by: Rickard Otvos <[email protected]>

Set version to 26.5.0

Set version to 26.4.7

Set version to 26.2.12

Set version to 26.4.6

Set version to 26.2.11

Set version to 26.4.5

Set version to 26.4.4

Set version to 26.4.3

Set version to 26.0.17