fix: react documentation commands can not be in sentence #354

[kristersd]

Closes #354

[what-the-diff]

PR Summary

• Enhanced commands.ts with improved import statements
  The commands.ts file has been updated to import specific modules from discord.js which increases the efficiency and speed of the code.

• Refined handleMessage function
  The handleMessage function in commands.ts has now been modified to utilize the extractSearchKey helper function rather than splitting up the message content. This change simplifies the code and makes it easier to maintain in the future.

• Improved readability of generateReactDocsErrorEmbeds function
  The generateReactDocsErrorEmbeds function now uses multi-line object literals. This makes the code easier to read and comprehend.

• Added unit tests for helper functions
  A new file react-docs.test.ts has been added which contains unit tests for the extractSearchKey and getReactDocsSearchKey functions. This ensures that the functions behave as expected and improves the overall reliability of the system.

• Improved react-docs.ts with new function and constant
  The EXTRACT_SEARCH_KEY_REGEX constant and the extractSearchKey function have been added to react-docs.ts. This helps the system in more effectively extracting the search key from a message.

• Code formatting and commenting for react-docs.ts
  To improve code readability and maintainability, react-docs.ts has been formatted and detailed comments have been added where necessary.

[vcarl]

Looks great! tyty

[vcarl]

🎉