Refactored the key_mappings into files for context_clues for better naming conventions, and added unit tests for the clues and the contents of the ActiveRadarrBlock arrays that are used for chain-of-responsibility delegation in the handlers and UI components.

src/app/context_clues.rs

@@ -0,0 +1,23 @@
+use crate::app::key_binding::{KeyBinding, DEFAULT_KEYBINDINGS};
+
+#[cfg(test)]
+#[path = "context_clues_tests.rs"]
+mod context_clues_tests;
+
+pub(in crate::app) type ContextClue = (KeyBinding, &'static str);
+
+pub fn build_context_clue_string(context_clues: &[(KeyBinding, &str)]) -> String {
+  context_clues
+    .iter()
+    .map(|(key_binding, desc)| format!("{} {}", key_binding.key, desc))
+    .collect::<Vec<String>>()
+    .join(" | ")
+}
+
+pub static SERVARR_CONTEXT_CLUES: [ContextClue; 2] = [
+  (DEFAULT_KEYBINDINGS.tab, "change servarr"),
+  (DEFAULT_KEYBINDINGS.quit, DEFAULT_KEYBINDINGS.quit.desc),
+];
+
+pub static BARE_POPUP_CONTEXT_CLUES: [ContextClue; 1] =
+  [(DEFAULT_KEYBINDINGS.esc, DEFAULT_KEYBINDINGS.esc.desc)];