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

@@ -78,7 +78,7 @@ class MainActivity : AppCompatActivity() {
         progressIndicator = findViewById(R.id.progress_indicator)
         buttonsContainer = findViewById(R.id.buttons_container)
         recyclerView = findViewById(R.id.list_events)
-        recyclerView.setLayoutManager(LinearLayoutManager(this))
+        recyclerView.setLayoutManager(LinearLayoutManager(applicationContext))
 
         // Set listeners
         findViewById<View>(R.id.logbooks_add_button).setOnClickListener {
@@ -637,8 +637,8 @@ class MainActivity : AppCompatActivity() {
         val previousTextView = dialogView.findViewById<TextView>(R.id.dialog_event_previous)
         val previousEvent = getPreviousSameEvent(event, allEvents)
         if (previousEvent != null) {
-            val emoji = previousEvent.getTypeEmoji(this)
-            val time = DateUtils.formatTimeDuration(this, event.time - previousEvent.time)
+            val emoji = previousEvent.getTypeEmoji(applicationContext)
+            val time = DateUtils.formatTimeDuration(applicationContext, event.time - previousEvent.time)
             previousTextView.text = String.format("⬅️ %s %s", emoji, time)
             previousTextView.setOnClickListener {
                 alertDialog.cancel()
@@ -652,8 +652,8 @@ class MainActivity : AppCompatActivity() {
         val nextTextView = dialogView.findViewById<TextView>(R.id.dialog_event_next)
         val nextEvent = getNextSameEvent(event, allEvents)
         if (nextEvent != null) {
-            val emoji = nextEvent.getTypeEmoji(this)
-            val time = DateUtils.formatTimeDuration(this, nextEvent.time - event.time)
+            val emoji = nextEvent.getTypeEmoji(applicationContext)
+            val time = DateUtils.formatTimeDuration(applicationContext, nextEvent.time - event.time)
             nextTextView.text = String.format("%s %s ➡️", time, emoji)
             nextTextView.setOnClickListener {
                 alertDialog.cancel()