Fix `car_ui_alert_dialog_default_button` to be translatable

This allows the default text on alert dialogs to be properly translated

Bug: 162465229
Test: presubmits + manual
Change-Id: I5d33a366e5d8d0e120ac8e4293012bf9d7fcb3d9
diff --git a/car-ui-lib/car-ui-lib/src/main/res/values/strings.xml b/car-ui-lib/car-ui-lib/src/main/res/values/strings.xml
index 16fdc0d..46a29fe 100644
--- a/car-ui-lib/car-ui-lib/src/main/res/values/strings.xml
+++ b/car-ui-lib/car-ui-lib/src/main/res/values/strings.xml
@@ -48,7 +48,7 @@
     <string name="car_ui_preference_switch_off">Off</string>
 
     <!-- Text to show when no button is provided and a default button is used. -->
-    <string name="car_ui_alert_dialog_default_button" translatable="false">Close</string>
+    <string name="car_ui_alert_dialog_default_button">Close</string>
 
     <!-- Shown at the bottom of a content limited list when user has scrolled past the limit while driving -->
     <string name="car_ui_scrolling_limited_message">Scrolling limited while driving</string>