[Feature Request] Add Toggle Option to Enable/Disable NearDrop Visibility

[khoanguyen-3fc]

Currently, NearDrop starts with visibility enabled by default, which can be inconvenient for users who do not want to be constantly visible to other devices. Adding a toggle option to enable or disable NearDrop's visibility would provide greater control and convenience. This feature would allow users to easily manage when NearDrop is active or inactive without needing to quit the application.

To enhance user control, I suggest adding a toggle option accessible by clicking the NearDrop icon on the Mac menu bar. When NearDrop is disabled, the icon could gray out to indicate its status.

Additionally, a more advanced feature could be implemented: automatically disable NearDrop after a file is received, reverting to a disabled state until manually re-enabled. This would make the app easier to use and work better.