feat(food): add unique hashed meal id

[Robert27]

This pull request includes several updates to dependencies and modifications to the meal data handling in the codebase. The most important changes include updating dependencies in package.json, adding new fields to the GraphQL schema, and refactoring the meal hashing functions to use a different hashing library.

Dependency Updates:

• Updated several dependencies and devDependencies in package.json, including drizzle-orm, @commitlint/cli, and @eslint/eslintrc. Added @node-rs/xxhash and removed object-hash. [1] [2]

GraphQL Schema Changes:

• Added mealId field to Meal and Variation types in src/schema/types.gql to uniquely identify meals independent of the day. [1] [2]

Meal Hashing Refactor:

• Replaced getMealHash with getMealDayHash in multiple files (src/scraping/canisius.ts, src/scraping/mensa.ts, src/scraping/reimanns.ts) to use the new hashing function. [1] [2] [3]
• Updated getMealHash and getMealDayHash functions in src/utils/food-utils.ts to use xxhash instead of object-hash. [1] [2]

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