V3: Accept kebabCased keys in defineContentConfig()

[stijns96]

I want to add kebabCased keys to my defineContentConfig() to math the route.path value.

Current

import { defineContentConfig, defineCollection } from "@nuxt/content";

export default defineContentConfig({
  collections: {
    gettingStarted: defineCollection({
      type: "page",
      source: "1.guide/1.getting-started/**/*.md",
    }),
  },
});

Expected

import { defineContentConfig, defineCollection } from "@nuxt/content";

export default defineContentConfig({
  collections: {
    "getting-started": defineCollection({
      type: "page",
      source: "1.guide/1.getting-started/**/*.md",
    }),
  },
});

By supporting this, I can make my queryCollection() a bit more flexible by adding a route.path or a part of it.

[farnabaz]

Collection names are used to create tables in the database and types in typescript. - and other non-alphabetic characters are not valid chars in these two situations. If you want to get the collection name from the URL, you can use _ instead of -.

_ is valid in the table name, typescript/javascript variables, and also in URL.