Prevent crashes when failing to decode event json

plausible/src/main/java/com/wbrawner/plausible/android/Event.kt

@@ -39,7 +39,11 @@ internal data class Event(
     val props: String?
 ) {
     companion object {
-        fun fromJson(json: String): Event = Json.decodeFromString(json)
+        fun fromJson(json: String): Event? = try {
+            Json.decodeFromString(json)
+        } catch (ignored: Exception) {
+            null
+        }
     }
 }
 

plausible/src/main/java/com/wbrawner/plausible/android/PlausibleClient.kt

@@ -95,6 +95,11 @@ internal class NetworkFirstPlausibleClient(
             config.eventDir.mkdirs()
             config.eventDir.listFiles()?.forEach {
                 val event = Event.fromJson(it.readText())
+                if (event == null) {
+                    Timber.tag("Plausible").e("Failed to decode event JSON, discarding")
+                    it.delete()
+                    return@forEach
+                }
                 try {
                     postEvent(event)
                 } catch (e: IOException) {