Add back android-process-button library

wtf Android Studio, thanks for lying to me.

app/build.gradle.kts

@@ -237,6 +237,7 @@ dependencies {
     implementation("com.github.gpanther:java-nat-sort:natural-comparator-1.1")
 
     // UI
+    implementation("com.github.dmytrodanylyk.android-process-button:library:1.0.4")
     implementation("eu.davidea:flexible-adapter:5.1.0")
     implementation("eu.davidea:flexible-adapter-ui:1.0.0")
     implementation("com.nightlynexus.viewstatepageradapter:viewstatepageradapter:1.1.0")