Refresh the Flutter snapshot and APK with the real Rippr icons

The previous APK shipped the default Flutter logo on the home screen. This build
carries the adaptive launcher icon, the monochrome notification icon, and dark
launch screens, all verified on an Android emulator.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

rippr-flutter-src/ios/Runner/Base.lproj/LaunchScreen.storyboard

@@ -19,7 +19,7 @@
                             <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
                             </imageView>
                         </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <color key="backgroundColor" red="0.062745" green="0.078431" blue="0.094118" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                         <constraints>
                             <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
                             <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>