Move to 0.3.0-rc1 (#410)

ci/compose-uber-jar/gradle.properties

examples/codeviewer/android/build.gradle.kts

examples/codeviewer/build.gradle.kts

examples/codeviewer/desktop/build.gradle.kts

examples/falling_balls/build.gradle.kts

examples/imageviewer/android/build.gradle.kts

examples/imageviewer/build.gradle.kts

examples/imageviewer/desktop/build.gradle.kts

examples/intelliJPlugin/build.gradle.kts

examples/issues/android/build.gradle.kts

examples/issues/build.gradle.kts

examples/issues/desktop/build.gradle.kts

examples/todoapp/android/build.gradle.kts

examples/todoapp/buildSrc/buildSrc/src/main/kotlin/Deps.kt

examples/todoapp/common/compose-ui/build.gradle.kts

examples/todoapp/desktop/build.gradle.kts

...p/desktop/src/jvmMain/kotlin/example/todo/desktop/Main.kt

examples/widgetsgallery/android/build.gradle.kts

examples/widgetsgallery/build.gradle.kts

examples/widgetsgallery/desktop/build.gradle.kts