fix(files_sharing): password checkbox and labels in link share

[ShGKme]

Summary

In link share creation:

• When "Always ask for a password" is enabled but not enforced, there was no checkbox to enable/disable password
  • NcActionCheckbox component wasn't imported and registered - fixed
• In both password and date inputs, there were no labels but just a text in the previous item
  • NcActionInput content was used instead of a label prop - replaced
  • Also, removed unneeded NcActionText in flavor of label

Screenshots

Enforced date - worked but no accessible label

Before	After

Enforced password - worked but no accessible label

Before	After

Ask for a password - had no label at all and no checkbox to re-enable

Before	After

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[ShGKme]

/backport to stable30

[ShGKme]

/backport to stable29

[ShGKme]

Rebased on master to resolve conflicts.