add a focus above key

src/config.rs

@@ -87,6 +87,7 @@ pub struct KeyConfig {
     pub exit_popup: Key,
     pub focus_right: Key,
     pub focus_left: Key,
+    pub focus_above: Key,
     pub focus_connections: Key,
     pub open_help: Key,
     pub filter: Key,
@@ -124,6 +125,7 @@ impl Default for KeyConfig {
             exit_popup: Key::Esc,
             focus_right: Key::Right,
             focus_left: Key::Left,
+            focus_above: Key::Up,
             focus_connections: Key::Char('c'),
             open_help: Key::Char('?'),
             filter: Key::Char('/'),