message: Update error message for bootstrapServers and topics
diff: @@ -37,8 +37,7 @@ const KafkaSourceSection: React.FC<KafkaSourceSectionProps> = ({ title }) => {
  ];
  placeholder = 'Add Bootstrap Servers';
  } else if (kafkas.loadError) {
  - bootstrapServersOptions = [{ value: kafkas.loadError?.message, disabled: true }];
  - placeholder = 'Error loading Bootstrap Servers';
  + placeholder = `${kafkas.loadError?.message}. Try adding Bootstrap Servers manually.`;
  } else {
  bootstrapServersOptions = [{ value: 'Loading Bootstrap Servers...', disabled: true }];
  placeholder = '...';
  @@ -63,8 +62,7 @@ const KafkaSourceSection: React.FC<KafkaSourceSectionProps> = ({ title }) => {
  ];
  placeholder = 'Add Topics';
  } else if (kafkatopics.loadError) {
  - topicsOptions = [{ value: kafkatopics.loadError?.message, disabled: true }];
  - placeholder = 'Error loading Topics';
  + placeholder = `${kafkatopics.loadError?.message}. Try adding Topics manually.`;
  } else {
  topicsOptions = [{ value: 'Loading Topics...', disabled: true }];
  placeholder = '...';
  