feat: Add support for clusterType param in getClustersPaginated endpoint

[programmiri]

Linked issue

Resolves to: #2314

What kind of change does this PR introduce?

• Bug fix
• New feature
• Refactor
• Docs update
• CI update

What is the current behavior?

While getClustersPaginated has a parameter typeOfCluster, it uses:

List<KwClustersModelResponse> kwClustersModelList = getClusters("all");

What is the new behavior?

To enabed filtering by clusterType in coral later:

• getClustersPaginated now expects typeOfCluster being oft type KafkaClustersType

getClustersPaginated does take a string (representing the enum of KafkaClustersType typeOfCluster

• it passes String clusterTypeValue = typeOfCluster.value; to getClusters (this way, there are no further changes needed related to getClusters
• it changes "all" to "ALL" for the call to getClustersPaginated in env.js in Angular (that's the only place I've found it used)
• changes "all" to "ALL" in the same call in coral

Other information

Additional changes, explanations of the approach taken, unresolved issues, necessary follow ups, etc.

Requirements (all must be checked before review)

• The pull request title follows our guidelines
• Tests for the changes have been added (if relevant)
• The latest changes from the main branch have been pulled
• pnpm lint has been run successfully

[aindriu-aiven]

LGTM