Modifies the error message to list the available starters

[mik-dass]

What type of PR is this?

/kind bug

What does this PR do / why we need it:

It modifies the error message to list the available starters.

Which issue(s) this PR fixes:

Fixes #4481

PR acceptance criteria:

• Unit test

• Integration test

• Documentation

• Update changelog

• I have read the test guidelines

How to test changes / Special notes to the reviewer:

• Trigger odo create --starter=<invalid-starter-name> nodejs
• The error message should show the names of the available starters.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[openshift-ci]

@mik-dass: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Rerun command
ci/prow/psi-unit-test-windows	c5e6fa4	link	/test psi-unit-test-windows
ci/prow/psi-kubernetes-integration-e2e	c5e6fa4	link	/test psi-kubernetes-integration-e2e

Full PR test history. Your PR dashboard.

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[kadel]

/approve
small change
/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kadel

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