Merge pull request #136 from tom93/fix-export-missing-file-extension

Fix missing .json file extension when exporting messages

app/src/main/kotlin/org/fossify/messages/activities/SettingsActivity.kt

@@ -106,7 +106,7 @@ class SettingsActivity : SimpleActivity() {
     private fun setupMessagesExport() {
         binding.settingsExportMessagesHolder.setOnClickListener {
             ExportMessagesDialog(this) { fileName ->
-                saveDocument.launch(fileName)
+                saveDocument.launch("$fileName.json")
             }
         }
     }