Added back version checking (and version boxes) after transitioning homepage to MVVM

Fixed several errors caused along the way

app/src/main/java/com/topjohnwu/magisk/ui/base/MagiskViewModel.kt

@@ -1,6 +1,17 @@
 package com.topjohnwu.magisk.ui.base
 
 import com.skoumal.teanity.viewmodel.LoadingViewModel
+import com.topjohnwu.magisk.utils.Event
+import timber.log.Timber
 
 
-abstract class MagiskViewModel : LoadingViewModel()
+abstract class MagiskViewModel : LoadingViewModel(), Event.AutoListener {
+
+    init {
+        Event.register(this)
+    }
+
+    override fun onEvent(event: Int) = Timber.i("Event of $event was not handled")
+    override fun getListeningEvents(): IntArray = intArrayOf()
+
+}