[Task] we should always show env var and secrets field in mcp form

[peppescg]

Description

Currently we show the env vars and secrets fields based on configuration, we should allow the users to always add env vars. This will be useful as soon as the user will pull from upstream registry, where it will be possible to not have env vars configuration out of the box

Acceptance Criteria

No response

Priority

Medium

Task Type

Feature

Additional Context

No response