MiniABS 1.2: Galician interface, larger text and touch targets

- Translate the interface to Galician (tools/translate_gl.py), including
  Galician month abbreviations for dates, which Android 2.3 lacks
- Resize for the Galaxy Mini's 240x320 screen: larger text, rows, tabs and
  buttons; all sizes now live in res/values/dimens.xml
- Redraw play/pause/refresh icons for every density; slightly brighter
  secondary text colours

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

test/com/miniabs/ApiTest.java

@@ -55,7 +55,7 @@ public class ApiTest {
             Api.login(c, p.server(), "demo", "wrong");
             check(false, "wrong password rejected");
         } catch (Api.ApiException e) {
-            check(e.code == 401 && e.getMessage().contains("Wrong"), "wrong password rejected with a clear message");
+            check(e.code == 401 && e.getMessage().contains("contrasinal incorrectos"), "wrong password rejected with a clear message");
         }
         String lib = Api.login(c, p.server(), "demo", "pw");
         check(lib.equals("lib-pod"), "login returns default library");