events: allow editing of all used values

Allow to change the date/time and
other relevant values of an event
on creation and after it was created.

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

@@ -288,7 +288,7 @@ class MainActivity : AppCompatActivity() {
     fun askTemperatureValue(event: LunaEvent, showTime: Boolean, onPositive: () -> Unit) {
         // Show number picker dialog
         val d = AlertDialog.Builder(this)
-        val dialogView = layoutInflater.inflate(R.layout.dialog_edit_temperature, null)
+        val dialogView = layoutInflater.inflate(R.layout.temperature_dialog, null)
         d.setTitle(R.string.log_temperature_dialog_title)
         d.setMessage(R.string.log_temperature_dialog_description)
         d.setView(dialogView)