Update js sdk for argument consistency

[theishangoswami]

The JavaScript SDK was refactored to remove all usages of the spread operator (...) and replace them with explicit argument passing. This change aligns the SDK with the Python SDK's recent updates, improving forward compatibility and type safety by preventing accidental property passing from API responses to requests.

Key changes include:

• Main API Methods (src/index.ts):
  • search(), searchAndContents(), findSimilar(), findSimilarAndContents(), and getContents() methods now explicitly assign each option property (e.g., numResults, includeDomains, text) to the payload object instead of using the spread operator.
  • The extractContentsOptions() helper function was refactored to manually extract content-specific properties and build restOptions using a loop and Set-based filtering, avoiding destructuring with spread.
• Websets API Methods:
  • listAll() in src/websets/client.ts and src/websets/items.ts now explicitly assigns cursor and limit pagination options.
  • listAll() and listAllAttempts() in src/websets/webhooks.ts explicitly assign cursor, limit, and eventType pagination options.

This refactoring ensures the SDK remains robust when new fields are introduced in API responses and enhances type checking. The changes maintain the existing public API interface.