New instance name is always in lower case

[moubctez]

How to reproduce:

1. In Defguard Client, click Add Instance.
2. Copy and paste correct Instance URL and Token.
3. Enter new name with some upper case letters.

Actual result:
In Defguard Client, the new name is displayed in lower case letters, while in Defguard Core the letter case is intact.

Expected result:
In Defguard Client, the new name is displayed as typed.