Misleading example placeholder in labels section of add flows

Description of problem: Misleading example placeholder in labels section of add flows 

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

1. Navigate to deploy image flow/ git import flow.
2. Open labels section from advanced option.

Actual results: `app` label is used as an example.

Expected results: some other example should be used as `app` is a default label.

Reproducibility (Always/Intermittent/Only Once):

always

Build Details:

4.8.0-0.nightly-2021-06-13-101614

Additional info: