Returns the localized name of the current keyboard layout.
Uses the base keyboard layout, which is the underlying layout even when an input
method (such as a CJK input method) is also active.
Returns string|null
The display name of the active layout (e.g. "U.S.", "British"), or null.
Returns the localized name of the current keyboard layout. Uses the base keyboard layout, which is the underlying layout even when an input method (such as a CJK input method) is also active.