Updates to CLI and CDK guides in G1 Build & Connect Backend section (#6849)

* Inline filtering for CLI guide

* updates to CDK guide

* Updates to CDK guide

* Updates to inline filter

* Update src/pages/[platform]/build-a-backend/existing-resources/cdk/index.mdx

Co-authored-by: josef <[email protected]>

* Update src/pages/[platform]/build-a-backend/existing-resources/cdk/index.mdx

Co-authored-by: josef <[email protected]>

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Co-authored-by: josef <[email protected]>

Author: hibler13