fix(currency): Improve error handling for currency and category fetching in product form

[gustaavik]

This pull request introduces several updates to improve code clarity, error handling, and functionality across multiple files. Key changes include enhancements to Docker commands in the Makefile, improved error handling in the load function for fetching currencies and categories, and removal of unnecessary logging in the currency mapper.

Makefile updates:

• Removed the redundant docker-build command and streamlined the docker-build-tag command by eliminating the latest tag.
• Simplified the docker-push command by removing the push operation for the latest tag.

Error handling improvements:

• Updated the load function in src/routes/admin/products/new/+page.server.ts to use Promise.allSettled for fetching currencies and categories, adding robust error handling for rejected promises.
• Refactored the load function to ensure proper fallback values for currencies and categories in case of errors.

Code cleanup:

• Removed a console.log statement from the currency.mapper.ts file to reduce unnecessary logging.