Update .code-samples.meilisearch.yaml

[Bruno Casali]

⚠️ This issue is generated. It means the examples and the namings do not necessarily correspond to the language of this repository.
Also, if you are a maintainer, feel free to add any clarification and instruction about this issue.

Sorry if this is already wholly/partially implemented. Feel free to let me know about the state of this issue in the repo.

Related to meilisearch/integration-guides#185

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Check the integration-guides issue for more information and the complete description about what should be done here (each TODO item has its report in the #185).

TODO:

• New code samples regarding the new getting started
• Replace description into overview and genre into genres
• Update geosearch guide
• Remove unused code samples
• Update the primary key examples
• Add settings_guide_sortable_1 code samples
• Add landing_getting_started_1 code samples