feat(medusa-plugin-meilisearch): Update + improve Meilisearch plugin

[olivermrbl]

What

• Bumps meilisearch dep to latest major
• Migrates plugin to TypeScript
• Changes the way indexes are configured in medusa-config.js:

Before

{
    resolve: `medusa-plugin-meilisearch`,
    options: {
      config: { host: "...", apiKey: "..." },
      settings: {
        products: {
          searchableAttributes: ["title"],
          displayedAttributes: ["title"],
        },
      },
    },
  },

After

{
    resolve: `medusa-plugin-meilisearch`,
    options: {
      config: { host: "...", apiKey: "..." },
      settings: {
        products: {
          **indexSettings**: {
            searchableAttributes: ["title"],
            displayedAttributes: ["title"],
          },
        },
      },
    },
  },

This is done to allow for additional configuration of indexes, that are not necessarily passed on query-time.

We introduce two new settings:

settings: {
  products: {
    indexSettings: {
      searchableAttributes: ["title"],
      displayedAttributes: ["title"],,
    },
    primaryKey: "id"
    transformer: (document) => ({ id: "yo" })
  },
},

Meilisearch changed their primary key inference in the major release. Now we must be explicit when multiple properties end with id. Read more in their docs.

The transformer allows developers to specify how their documents are stored in Meilisearch. It is configurable for each index.

---

Solves Discussion #3277
Solves #3373
Solves #2959 (no tests with the extender, as that is out of scope)

[changeset-bot]

🦋 Changeset detected

Latest commit: 5982c08

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
medusa-plugin-meilisearch	Major
@medusajs/medusa	Patch
@medusajs/inventory	Patch

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[srindom]

@olivermrbl - why is this closed?

[olivermrbl]

I am not entirely done with the PR. I can reopen it as draft, if that's better? :)

[olivermrbl]

@srindom Also, there are a couple of decisions to be made around the transformer strategy. I took a first stab at a solution, allowing developers to provide their own. Would love some feedback on it. And if you have any ideas for alternative approaches, please feel free to pitch in.

[olivermrbl]

If we proceed with these changes, the Algolia plugin should be updated as well.

[adrien2p]

LGTM for the scope of that PR 💪

[olivermrbl]

@srindom Would like to hear what you think about this proposal. Note, I've intentionally kept the scope small to solve the issues at hand.

[srindom]

LGTM! Only have a small question on the version bump