fix(NcActions): fix role and aria attributes

[ShGKme]

☑️ Resolves

• Fix [BITV] 9.4.1.2/2.6 - The "Weather" menu - The implementation as an application menu is not complete as only role="menu" was used and also not appropriate in this case. Implementing it as a normal list with interactive elements would be a better alternative. (1) nextcloud/server#37099

NcActions and NcAction* items should have correct menu roles only when it represents a menu.

See detailed requirement in the comment here: nextcloud/server#37099 (comment)

🖼️ Screenshots

Example	Before	After
Application menus		+group, +presentation, +label, +checkbox/radio
Navigation	✅	No changes
Popovers		no wrong roles

🚧 Tasks

• Add more examples with use cases to docs
• NcActionSeparator: add role="separator"
• NcActionButtonGroup: add role="group" and aria-labelledby
• NcActionsButton and NcButton:
  - Always set aria-hidden="true" on span.icon in default #icon
  - ⚠️ Deprecate ariaHidden props. Developers don't need to set it manually, it is always needed by default ⚠️
• NcActions:
  - Change rule to determine when actions has role="menu"
  - Provide NcActions:inSemanticMenu, to NcAction* may know if they are in role="menu"
  - Only in a menu:
  - LI has role="presentation"
  - BUTTON has role="menuitem"
  - In NcActionCheckbox/NcActionRadio:
  - span has role="menuitemcheckbox" or role="menuitemradio"
  - span has correct aria-checked

🏁 Checklist

• ⛑️ Tests are included or are not applicable
• 📘 Component documentation has been extended, updated or is not applicable