Delay only if not empty

Signed-off-by: Mario Danic <mario@lovelyhq.com>

app/src/main/java/com/nextcloud/talk/newarch/features/search/DebouncingTextWatcher.kt

@@ -66,7 +66,9 @@ class DebouncingTextWatcher(
         searchJob?.cancel()
         searchJob = coroutineScope.launch {
             charSequence.let {
+                if (!charSequence.isNullOrEmpty()) {
                     delay(debouncePeriod)
+                }
                 onDebouncingTextWatcherChange(charSequence)
             }
         }