App 2.17.0: speed average, compact top bar, About in Settings

- "Speed, 5-min average" card under Speed: time-weighted mean speed,
  standing included, from the same samples as the other averages.
- The top bar is one compact line (title and subtitle side by side).
  Version, update check and About moved from it to an App card on the
  Settings tab.
- The Overview no longer scrolls in the car's window: checked on the
  emulator at 1778x640, the layout height the car reports, after
  trimming the page's padding and the tyre card's height.
- The capacity hint says "Overview" instead of "Vehicle tab".

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QLJfZQZeAKAwSqViTmLzki

app/src/test/java/com/evsuite/abrp/RangeEstimatorTest.java

@@ -140,4 +140,16 @@ public class RangeEstimatorTest {
         for (long t = 315_000; t <= 450_000; t += 15_000) r.add(t, 2f, 0f);
         assertEquals(11.0, r.averagePowerKw(450_000), 1.0);
     }
+
+    @Test
+    public void averageSpeedOverTheLastFiveMinutes() {
+        RangeEstimator r = new RangeEstimator();
+        r.add(0, 10f, 60f);
+        assertNull(r.averageSpeedKmh(0));
+        for (long t = 15_000; t <= 300_000; t += 15_000) r.add(t, 10f, 60f);
+        assertEquals(60.0, r.averageSpeedKmh(300_000), 1e-6);
+        // Half the window standing at lights halves the average.
+        for (long t = 315_000; t <= 450_000; t += 15_000) r.add(t, 1f, 0f);
+        assertEquals(30.0, r.averageSpeedKmh(450_000), 4.0);
+    }
 }