Auto-commit after successful build: update app gameplay/UI, improve build setup

Changed files:\napp/build.gradle.kts
app/src/main/java/com/kawomi/githugandroid/Exercise.kt
app/src/main/java/com/kawomi/githugandroid/Panes.kt
app/src/main/java/com/kawomi/githugandroid/Terminal.kt

app/build.gradle.kts

@@ -11,8 +11,8 @@ android {
         applicationId = "com.kawomi.githugandroid"
         minSdk = 26
         targetSdk = 34
-        versionCode = 39
-        versionName = "0.1.38"
+        versionCode = 40
+        versionName = "0.1.39"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true