[translation] Migrate translation projects to use snippets extraction

[mpodwysocki]

Packages impacted by this PR

• @azure-rest/ai-translation-document
• @azure-rest/ai-translation-text

Issues associated with this PR

• [snippets] Add README snippets for all projects #32416

Describe the problem that is addressed by this PR

Updates all projects under translation to use snippets extraction. Note this disables non-functioning tests that need to be recorded under the documentTranslationTest.spec.ts and translationFilterTest.spec.ts. Noted in the issue #31948 that the tests need to be re-recorded.

What are the possible designs available to address the problem? If there are more than one possible design, why was the one in this PR chosen?

Are there test cases added in this PR? (If not, why?)

Provide a list of related PRs (if any)

Command used to generate this PR:**(Applicable only to SDK release request PRs)

Checklists

• Added impacted package name to the issue description
• Does this PR needs any fixes in the SDK Generator?** (If so, create an Issue in the Autorest/typescript repository and link it here)
• Added a changelog (if necessary)

[azure-sdk]

API change check

API changes are not detected in this pull request.