LG webOS Keyboard Support

[Nerwyn]

Is your feature request related to a problem? Please describe.
There may be a way to add keyboard support to the LG webOS platform.

Describe the solution you'd like
Sending text:

action: perform-action
perform_action: webostv.command
data:
  command: com.webos.service.ime/insertText
  payload:
    text: text
    replace: true # disable force cursor to end like Kodi
target:
  entity_id: media_player.lg_webos_smart_tv

Enter:

action: perform-action
perform_action: webostv.command
data:
  command: com.webos.service.ime/sendEnterKey
target:
  entity_id: media_player.lg_webos_smart_tv

Describe alternatives you've considered
NA

Additional context
I should also consider adding some more webOS default keys using the list provided in the integration docs.

Is there a way to add global search using this?

I don't have a webOS TV, I'll need testers!