v1.4 refactor and rename

[codybrom]

Key improvements:

• New Name: The name change to "LLM Context Generator" makes it clear that the extension can be used with various LLMs, not just GPT models.
• Improved File Exclusions: Adds a new .ignore configuration to add additional .ignore pattern lists.
  • Closes File exclusion settings #2
• Improved File Marking System: Adds multi-file/folder marking system using the Explorer menu to easily select specific files for context generation. Automatic file tracking handles when marked files are moved or deleted.
• Enhanced File Extension Handling: Broadened support for more diverse file types and programming languages out of the box.
• Improved Token Count Estimation: Switched from gpt-3-encoder to @dqbd/tiktoken for enhanced token counting accuracy and efficiency. for the generated context to help manage usage within LLM token limits, with a configurable warning if the context exceeds a predefined number of tokens (default: 8,000).
• Codebase Refactor: Improved code structure and maintainability using ESBuild, TypeScript, and a more modular design. Removed unused test files and outdated dependencies.
• Updated README: Revised documentation to reflect the new name, features, and usage instructions.