Function checkDockerImageExists

checkDockerImageExists(imageName: string, imageTag: string): boolean
Checks if a Docker image with the given name and tag exists locally.
Parameters
- imageName: string
  The name of the Docker image (e.g., "block-node-server").
- imageTag: string
  The tag of the Docker image (e.g., "0.12.0").
Returns boolean
True if the image exists, false otherwise.
- Defined in src/core/helpers.ts:583