main: populate menu header in onLogbookLoaded and onLogbookSaved

This targets the dynamic menu setting when only very
few events are available. Before the header stayed empty
when the first events very added, now the header is updated
immediately.

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

@@ -86,8 +86,6 @@ class MainActivity : AppCompatActivity() {
         recyclerView = findViewById(R.id.list_events)
         recyclerView.setLayoutManager(LinearLayoutManager(applicationContext))
 
-        populateHeaderMenu()
-
         // Set listeners
         findViewById<View>(R.id.logbooks_add_button).setOnClickListener {
             showAddLogbookDialog(true)
@@ -138,8 +136,6 @@ class MainActivity : AppCompatActivity() {
 
         allEvents = logbook?.logs ?: arrayListOf()
         setListAdapter(allEvents)
-
-        populateHeaderMenu()
     }
 
     private fun populateHeaderMenu() {
@@ -1127,6 +1123,8 @@ class MainActivity : AppCompatActivity() {
                     logbook = lb
                     showLogbook()
 
+                    populateHeaderMenu()
+
                     if (DEBUG_CHECK_LOGBOOK_CONSISTENCY) {
                         for (e in logbook?.logs ?: listOf()) {
                             val em = e.getHeaderEmoji(this@MainActivity)
@@ -1245,6 +1243,8 @@ class MainActivity : AppCompatActivity() {
                         Toast.LENGTH_SHORT
                     ).show()
                     savingEvent(false)
+
+                    populateHeaderMenu()
                 })
             }