fix: wait for Confirm by its title in the tap test

The game-data tap test waited on the bare RetroBIOS: title, which the
screen before Confirm already showed, then pressed Enter only if one
settle had drawn Confirm. The runner drew it later and the install
never started. It now waits for the Confirm title and presses Enter.

tests/test_install_tui.py

@@ -12367,12 +12367,14 @@ class TapsOnAPtySeeFirst(unittest.TestCase):
                 break
             term.send("\x1b[A")
         term.send("\r")
-        screen = term.wait("RetroBIOS:")
-        if "Confirm" in term.settle():
-            term.send("\r")
+        # The changed choices are counted again on Confirm. Waiting on the
+        # bare title matched the screen before it, and a runner that drew
+        # Confirm after one settle never pressed Enter there.
+        term.wait("RetroBIOS: Confirm")
+        term.settle()
+        term.send("\r")
         term.wait("files installed")
         self.assertEqual(repo.installed(), ["gba_bios.bin", "mgba/extra.bin"])
-        del screen
         term.send("q")
         term.close()