feat: Use V2 API's in Console (#9312)

# Which Problems Are Solved
Solves #8976

# Additional Changes
I have done some intensive refactorings and we are using the new
@zitadel/client package for GRPC access.

# Additional Context
- Closes #8976

---------

Co-authored-by: Max Peintner <peintnerm@gmail.com>

internal/feature/feature.go

@@ -24,6 +24,7 @@ const (
 	KeyEnableBackChannelLogout
 	KeyLoginV2
 	KeyPermissionCheckV2
+	KeyConsoleUseV2UserApi
 )
 
 //go:generate enumer -type Level -transform snake -trimprefix Level
@@ -54,6 +55,7 @@ type Features struct {
 	EnableBackChannelLogout         bool                      `json:"enable_back_channel_logout,omitempty"`
 	LoginV2                         LoginV2                   `json:"login_v2,omitempty"`
 	PermissionCheckV2               bool                      `json:"permission_check_v2,omitempty"`
+	ConsoleUseV2UserApi             bool                      `json:"console_use_v2_user_api,omitempty"`
 }
 
 type ImprovedPerformanceType int32