Podlite 1.8: MiniABS is now Podlite

Renames the app (label, texts, Audiobookshelf client name, User-Agent, APK). The package name,
preferences and signing key stay, so it installs over MiniABS and keeps its settings.

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

res/layout/activity_home.xml

@@ -9,7 +9,7 @@
         <TextView
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:text="MiniABS"
+            android:text="Podlite"
             android:textSize="@dimen/header_text"
             android:textStyle="bold"
             android:textColor="@color/accent_light" />