fix: prevent very old messages (15 minutes ago) being processed to prevent endless crashes in some cases

libsession/src/main/java/org/session/libsession/snode/SnodeAPI.kt

@@ -56,6 +56,10 @@ object SnodeAPI {
      * user's clock is incorrect.
      */
     internal var clockOffset = 0L
+
+    val nowWithOffset
+        get() = System.currentTimeMillis() + clockOffset
+
     internal var forkInfo by observable(database.getForkInfo()) { _, oldValue, newValue ->
         if (newValue > oldValue) {
             Log.d("Loki", "Setting new fork info new: $newValue, old: $oldValue")