fix: consider apiVersion when getting example yaml for crds

[tthvo]

Fixes #56

Description

• Added additional condition for checking apiVersion when searching for alm-examples for CRDs.
• Displayed a version next to CRD name for clarity (maybe there is a better design?)
• Applied lint fixes.

Motivations

See #56. Additionally, CRD that has no corresponding alm-example is showing an incorrect one if an example of the same kind (different version) is available. See https://github.com/cryostatio/cryostat-operator/issues/909

How to test

Use the following CSV, which both specify a CRD with >= 2 versions.

• https://gist.github.com/fanny-jiang/4f1829eb3262d47ebd64050a59fd7ec4
• https://gist.github.com/tthvo/4af24fa7122178afefc2acea2eccfb40

Use the CSV with preview page to see the changes.

[tthvo]

Hey @mvalarh, would I be able to get your or anyone's opinions on these changes?

[ebaron]

Hi, would someone mind taking a look at this PR? This bug is still affecting the Cryostat Operator: https://operatorhub.io/operator/cryostat-operator