Add Airdrop or Nearby share-like features to Hello

**Is your feature request related to a problem? Please describe.**
Add Airdrop or Nearby share-like features to Hello.
In the case of future needs, something like Airdrop will be the easiest way to transmit data without using a network hard drive. It can also be similar to Bluetooth without a mobile phone line, and the transmission will be more efficient than only Bluetooth transmission. fast; and he can also transfer files to multiple people, which is even more convenient.

**Describe the solution you'd like**
none

**Describe alternatives you've considered**
Snapdrop , More recommended, only it's a web page
Update: There is a desktop version, it just needs to be written.
OpenDrop , No interface and no updates in a year

**Additional context**
Nearby share
Airdrop
Snapdrop