- Kubel mode is only set once when the buffer is created.
- Now when `kubel` is called, it'll always create a new buffer with fresh variables for
- context, namespace, and resource.
- Stop killing existing buffer when changing objects, instead, a new function
- `kubel-refresh` is now taking care of displaying/refreshing current configuration.
- Show a message when the command is being executed, to easily tell if a command
  is being executed.

When there are too many kubel buffers is hard to differentiate what buffer
belongs to an specific cluster/namespace

I added pipe and colon to buffer name, pretty sure that will not work in Windows

It wasn't taking into account parent cluster,buffer from where it was created

<img src="https://screenshot.click/16-00-e54eg-wgzaz.png" width="50%" />

…bel-buffers

I don't use tramp, so not sure if this is needed