Feature Request: Add Support for Custom Unicode Mapping

Feature Request: Custom Unicode Mapping Support

Description

I would like to propose a feature that allows users to define custom mappings for specific Unicode escape sequences to their preferred characters.

Motivation

While the extension currently does a great job of converting standard Unicode and hexadecimal escape sequences, there might be cases where users have niche requirements for specific characters that aren't commonly used. This feature could enhance the user experience by allowing personalized text conversion.

Suggested Implementation

• Add an interface within the extension's options where users can input custom mappings in the format escape_sequence = character. For example,  = CustomCharacter.
• Store these mappings locally using the browser's storage API.
• Update the conversion algorithm to check against the custom map before performing the default conversion.

Benefits

• Increased flexibility for users who may work with specific character sets.
• Could attract a wider audience who have more specialized encoding needs.

Thank you for considering this feature idea!