App 2.24.1: remove the header line above the pages

The title and subtitle above every tab are gone; the pages start at
the top and gain about 45 dp. Their strings are removed. Emulator only.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6

app/src/main/java/com/evsuite/abrp/MainActivity.java

@@ -42,16 +42,6 @@ public class MainActivity extends AppCompatActivity {
             { R.id.tabVehicle, R.id.tabConsumption, R.id.tabCharging, R.id.tabService, R.id.tabServer,
               R.id.tabSettings, R.id.tabLog };
 
-    private static final int[] PAGE_TITLES = {
-            R.string.design_overview_title, R.string.consumption_title, R.string.charging_title,
-            R.string.design_service_title, R.string.design_server_title, R.string.design_settings_title,
-            R.string.design_log_title
-    };
-    private static final int[] PAGE_SUBTITLES = {
-            R.string.design_overview_subtitle, R.string.consumption_subtitle, R.string.charging_subtitle,
-            R.string.design_service_subtitle, R.string.design_server_subtitle, R.string.design_settings_subtitle,
-            R.string.design_log_subtitle
-    };
 
     // Status colours come from the palette, not from the Material swatches: #4CAF50 and
     // #F44336 sit around 4:1 on this background, which disappears behind a sunlit
@@ -202,7 +192,7 @@ public class MainActivity extends AppCompatActivity {
     }
 
     /**
-     * Marks the destination and labels the page on screen.
+     * Marks the destination in the navigation (the pages have no header line).
      *
      * Only isSelected is set: fill, text, icon and stroke come from the
      * res/color/nav_tab_*.xml selectors applied by the Widget.EV.NavTab style. isSelected
@@ -212,8 +202,6 @@ public class MainActivity extends AppCompatActivity {
         for (int i = 0; i < TAB_IDS.length; i++) {
             findViewById(TAB_IDS[i]).setSelected(i == position);
         }
-        ((TextView) findViewById(R.id.header_title)).setText(PAGE_TITLES[position]);
-        ((TextView) findViewById(R.id.header_subtitle)).setText(PAGE_SUBTITLES[position]);
     }
 
     /** Background thread for the one system-setting write (clearCarPlayFullScreen). */