fix: add space after password label when copying

[Svanvith]

Description

This change adds a space after Password: when copying a public link together with its password.

Currently, the password starts immediately after the colon:

https://cloud.docs.opencloud.rocks/s/KKLPLdXPWRzHDkm Password:!=U8#9CSgHth

After this change, the copied text contains a space between the label and the password:

https://cloud.docs.opencloud.rocks/s/KKLPLdXPWRzHDkm Password: !=U8#9CSgHth

This improves readability and makes it easier to distinguish the password from the Password: label.

Types of changes

• Bugfix
• Enhancement (a change that doesn't break existing code or deployments)
• Breaking change (a modification that affects current functionality)
• Technical debt (addressing code that needs refactoring or improvements)
• Tests (adding or improving tests)
• Documentation (updates or additions to documentation)
• Maintenance (like dependency updates or tooling adjustments)

[AlexAndBear]

Needs pm decision @tbsbdr @kulmann

Pitfall: users might copy the space as well and wondering why their password is not working.

[kulmann]

Pitfall: users might copy the space as well and wondering why their password is not working.

I think the risk for that is low enough.