Minor fix for broken android versions

app/src/main/java/de/kuschku/quasseldroid/ui/chat/input/Editor.kt

@@ -334,21 +334,19 @@ class Editor(
     }
     TooltipCompat.setTooltipText(clearButton, clearButton.contentDescription)
 
-    chatline.setOnEditorActionListener { _, actionId, event ->
-      if (event.action == KeyEvent.ACTION_DOWN) {
+    chatline.setOnEditorActionListener { _, actionId, event: KeyEvent? ->
       when (actionId) {
         EditorInfo.IME_ACTION_SEND,
         EditorInfo.IME_ACTION_DONE -> {
-            send()
+          if (event?.action == KeyEvent.ACTION_DOWN) send()
           true
         }
         else                       -> false
       }
-      } else false
     }
 
-    chatline.setOnKeyListener { _, keyCode, event ->
-      if (event.action == KeyEvent.ACTION_DOWN) {
+    chatline.setOnKeyListener { _, keyCode, event: KeyEvent? ->
+      if (event?.action == KeyEvent.ACTION_DOWN) {
         if (event.isCtrlPressed && !event.isAltPressed) when (keyCode) {
           KeyEvent.KEYCODE_B -> {
             formatHandler.toggleBold(chatline.selection)
@@ -385,7 +383,7 @@ class Editor(
           else                          -> false
         }
       } else if (keyCode == KeyEvent.KEYCODE_ENTER || keyCode == KeyEvent.KEYCODE_NUMPAD_ENTER) {
-        !event.isShiftPressed
+        !(event?.isShiftPressed ?: false)
       } else {
         false
       }