Describe the bug
Could be better to have validation message about accepted value for Replication Factor * field

Set up
https://www.kafka-ui.provectus.io/

Steps to Reproduce
Steps to reproduce the behavior:

1. Navigate to Topics
2. Edit a Topic
3. Change the value of "Replication Factor * " field to be < = 0

Expected behavior
Could be better to have information:

CASE doesn't work well with null. This works as expected and prints 'works':

WITH 2 AS name
RETURN CASE name
    WHEN 2 THEN 'works'
    WHEN null THEN "doesn't work"
    ELSE 'something went wrong'
END

If we swap the first case from 2 to 3. It should print 'something went wrong', but instead it prints "doesn't work":

WITH 2 AS name
RETURN CASE name
    WHEN 3 THEN 'works'

Use Case

• Provide a sample application to test DBs, messaging systems and HTTP, GRPC backend resolution and call view.

Proposal

• A simple app where backend can be swapped or we can use multiple backends.

Add some integration tests including the use of an avro schema registry

Description

Release an open telemetry reporter to export telemetry data

Is your feature request related to a problem? Please describe.
Today the user needs to deploy udf jars and reference data csvs manually to the blob location

Describe the solution you'd like
Enable the user to choose a file on a local disk which the web portal will then upload to the right location

https://developer.confluent.io/tutorials/creating-first-apache-kafka-producer-application/confluent.html
https://developer.confluent.io/tutorials/creating-first-apache-kafka-consumer-application/confluent.html

These tutorials don't use Avro (they produce/consume String keys and values), so the build.gradle file can be simplified

Currenlty a StreamsExecutionEnvironment instance can be registed directly through the AzkarraContext#addExecutionEnvironment method and from the configuration.

The following example shows how to define an environment using configuration :

azkarra {
  // Create a environment for running the WordCountTopology
  environments = [
    {
      name: "dev"
      config = {}
      jo