refactor: dashboard with new manifests structure (opendatahub-io#1065)

Partial application of already applied:

commit 438f4c2
Author: Wen Zhou <wenzhou@redhat.com>
Date:   Tue Jul 2 16:56:25 2024 +0200

    refactor: dashboard with new manifests structure (opendatahub-io#1065)

    * refactor: dashboard with new manifests structure

    - change type of platform, skip convert to string
    - add more support for ApplyParam() to
      not only take ENV but also anything from ExtraParamMaps
    * update: simplify override function
    * update: add value for Unknown platform
    ---------

    Signed-off-by: Wen Zhou <wenzhou@redhat.com>

Signed-off-by: Yauheni Kaliuta <ykaliuta@redhat.com>

components/modelregistry/modelregistry.go

@@ -36,7 +36,7 @@ type ModelRegistry struct {
 	components.Component `json:""`
 }
 
-func (m *ModelRegistry) OverrideManifests(ctx context.Context, _ string) error {
+func (m *ModelRegistry) OverrideManifests(ctx context.Context, _ cluster.Platform) error {
 	// If devflags are set, update default manifests path
 	if len(m.DevFlags.Manifests) != 0 {
 		manifestConfig := m.DevFlags.Manifests[0]
@@ -71,7 +71,7 @@ func (m *ModelRegistry) ReconcileComponent(ctx context.Context, cli client.Clien
 	if enabled {
 		if m.DevFlags != nil {
 			// Download manifests and update paths
-			if err := m.OverrideManifests(ctx, string(platform)); err != nil {
+			if err := m.OverrideManifests(ctx, platform); err != nil {
 				return err
 			}
 		}