Feat: Make Magic Login case insensitive

Walkthrough

The changes implemented enhance the magic link authentication process by modifying user lookup logic to be case-insensitive. This is achieved through the introduction of regular expressions for matching user input against the database, ensuring that variations in case do not result in errors. Additionally, a utility function for escaping special characters in regex patterns has been added to improve security and reliability.

Changes

Files	Change Summary
`backend/authStrategies/magiclogin.ts`	Updated user lookup logic to use a regular expression for case-insensitive matching of the `destination`.
`backend/controller/authController.ts`	Modified `magicloginHandler` to query the user with a case-insensitive regex match for `destination`. Imported `escapeRegExp`.
`common/scripts.ts`	Added a new function `escapeRegExp` to escape special regex characters in strings.

Assessment against linked issues

Objective	Addressed	Explanation
Make Magic Login case insensitive (#88)	✅

🐰
In fields of green, I hop with glee,
Magic links now match, oh so carefree!
No more errors when typing away,
Case doesn't matter, come what may!
With regex magic, all is bright,
Authentication's a joyful delight! 🌟

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david-loe / abrechnung