fix(tui): generic empty-state for searchable pickers (PR #1201, thanks @vignesh07)

Co-authored-by: Vignesh Natarajan <vigneshnatarajan92@gmail.com>

src/tui/components/searchable-select-list.test.ts

@@ -158,7 +158,7 @@ describe("SearchableSelectList", () => {
     list.handleInput("z");
 
     const output = list.render(80);
-    expect(output.some((line) => line.includes("No matching"))).toBe(true);
+    expect(output.some((line) => line.includes("No matches"))).toBe(true);
   });
 
   it("navigates with arrow keys", () => {

src/tui/components/searchable-select-list.ts

@@ -190,7 +190,7 @@ export class SearchableSelectList implements Component {
 
     // If no items match filter, show message
     if (this.filteredItems.length === 0) {
-      lines.push(this.theme.noMatch("  No matching models"));
+      lines.push(this.theme.noMatch("  No matches"));
       return lines;
     }