update: move pictures, remove initial flutter code

app/android/gradle/wrapper/gradle-wrapper.properties

app/android/settings.gradle

app/assets/images/2.0x/flutter_logo.png

app/assets/images/3.0x/flutter_logo.png

app/assets/images/flutter_logo.png

app/ios/.gitignore

app/ios/Flutter/AppFrameworkInfo.plist

app/ios/Flutter/Debug.xcconfig

app/ios/Flutter/Release.xcconfig

app/ios/Runner.xcodeproj/project.pbxproj

...er.xcodeproj/project.xcworkspace/contents.xcworkspacedata

...project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

...ect.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

...s/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

app/ios/Runner.xcworkspace/contents.xcworkspacedata

.../Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

...ner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

app/ios/Runner/AppDelegate.swift

...s/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

...ets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png