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>

res/layout/row_header.xml

@@ -4,9 +4,10 @@
     android:layout_width="fill_parent"
     android:layout_height="wrap_content"
     android:background="@color/surface"
-    android:paddingLeft="8dp"
-    android:paddingTop="4dp"
-    android:paddingBottom="4dp"
-    android:textSize="10sp"
+    android:paddingLeft="10dp"
+    android:paddingRight="10dp"
+    android:paddingTop="6dp"
+    android:paddingBottom="6dp"
+    android:textSize="@dimen/text_section"
     android:textStyle="bold"
     android:textColor="@color/sub" />