style(ui): simplify panels, remove borders and scrollbars, add padding, enable inline mode

television/cable/crontab.toml

@@ -12,7 +12,7 @@ command = '''echo 'Schedule: {split: :..5}' && echo '' && echo 'Command:' && ech
 
 [ui]
 layout = "portrait"
-preview_panel = { size = 30 }
+preview_panel = { size = 30, border_type = "none", scrollbar = false, padding = { left = 2, right = 1, top = 0, bottom = 0 } }
 
 [actions.edit]
 description = "Open crontab for editing"