Fix crash in case of WebDAV misconfigurazion or non reachability, WIP settings screen

app/src/main/java/it/danieleverducci/lunatracker/SettingsActivity.kt

@@ -2,12 +2,23 @@ package it.danieleverducci.lunatracker
 
 import android.os.Bundle
 import android.os.PersistableBundle
+import android.view.View
+import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
 
 class SettingsActivity : AppCompatActivity() {
 
-    override fun onCreate(savedInstanceState: Bundle?, persistentState: PersistableBundle?) {
-        super.onCreate(savedInstanceState, persistentState)
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        setContentView(R.layout.activity_settings)
+
+        findViewById<View>(R.id.settings_save).setOnClickListener({
+            Toast.makeText(this, "TODO", Toast.LENGTH_SHORT).show()
+        })
+        findViewById<View>(R.id.settings_cancel).setOnClickListener({
+            finish()
+        })
     }
 
 }