Fix splash lifecycle crash

Use a plain Activity for SplashActivity because it only redirects
to the camera screen and finishes immediately.

This avoids AppCompat lifecycle dispatch crashing on older Android
versions when the activity is destroyed before AndroidX moves it
out of INITIALIZED.

app/src/main/kotlin/de/markusfisch/android/binaryeye/activity/SplashActivity.kt

@@ -1,10 +1,10 @@
 package de.markusfisch.android.binaryeye.activity
 
+import android.app.Activity
 import android.content.Intent
 import android.os.Bundle
-import androidx.appcompat.app.AppCompatActivity
 
-class SplashActivity : AppCompatActivity() {
+class SplashActivity : Activity() {
 	override fun onCreate(state: Bundle?) {
 		super.onCreate(state)