feat(android): Go to settings from keyboard interface

### Is your feature request related to a problem? Please describe.

When you have to leave whatever app you are working in to go open Keyman app in order to add a language or to change a settings.

In Gboard and many other keyboards, you can go to keyboard settings from any app in which the keyboard is open, but in Keyman you will have to go to app drawer/launcher and tap the Keyman app icon to open it then go to settings to either add a language or adjust anything you want to.

### Describe the solution you'd like

Give us an option to go to settings from the keyboard interface, in any app. Maybe by a longpress on a key or any other way.

### Describe alternatives you've considered

_No response_

### Related issues

_No response_

### Keyman apps

- [x] Keyman for Android
- [ ] Keyman for iPhone and iPad
- [ ] Keyman for Linux
- [ ] Keyman for macOS
- [ ] Keyman for Windows
- [ ] Keyman Developer
- [ ] KeymanWeb
- [ ] Other - give details at bottom of form

### Keyman version

_No response_

### Operating system

_No response_

### Device

_No response_

### Target application

_No response_

### Browser

_No response_

### Keyboard name

_No response_

### Keyboard version

_No response_

### Language name

_No response_

### Additional context

_No response_