Confirmation button for card title input

[splitt3r]

Description: I think to unify the ux a confirmation button for the card title input would be a good idea. Somehow also related to nextcloud/server#7196. And perhaps the title in the sidebar should somehow show that it is editable or have at least an pointer cursor?

Nc Version: 13 (from git)

App Version: v0.3.0-beta1 (from git)

Browser: FF 57

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[juliusknorr]

Yep, there should be an action to all input fields, so users don't need to know about using enter to confirm.

[juliusknorr]

Closing as this was implemented in the vue branch and is now merged to master