Partially working filtering logic

src/app/key_binding.rs

@@ -15,6 +15,7 @@ generate_keybindings! {
     right,
     backspace,
     search,
+    filter,
     submit,
     quit,
     esc
@@ -50,6 +51,10 @@ pub const DEFAULT_KEYBINDINGS: KeyBindings = KeyBindings {
     key: Key::Char('s'),
     desc: "Search",
   },
+  filter: KeyBinding {
+    key: Key::Char('f'),
+    desc: "Filter",
+  },
   submit: KeyBinding {
     key: Key::Enter,
     desc: "Select",