[FEATURE] Add Help button and help panel as with the viewer

[Pewillia]

Is there an existing issue for this?

• I have searched the existing issues

Who request this Feature

me

User Story

Add a help explaining how a user can load a config file, modify the config he loaded thru the radio button or options save state, and edit the config file manually, save the config file or load a user selected config file or select thru the list of config files in the app

Implementation UI

button and panel to display, could display over the geoview map window