chore: remove .tool-versions file and update readme.md link

Remove the .tool-versions file as it is no longer needed for
managing tool versions, possibly due to a change in the version
management strategy. Update the readme.md to correct the author
of a gist link from "1oonie" to "esmaycat" to ensure the link
points to the correct resource.

Author: kzndotsh

.tool-versions

@@ -137,7 +137,7 @@ An Awesome list for all things Discord.py
 ## Community Gists and Snippets
 
 - [scragly/Learning discord.py](https://gist.github.com/scragly/095b5278a354d46e86f02d643fc3d64b) - Comprehensive guide and resource list for learning and building Discord bots using discord.py, including setup, essential concepts, and examples.
-- [1oonie/Message Components](https://gist.github.com/1oonie/500eafdad0aaf278b94c612764688976) - This gist shows you how to use message components in discord.py 2.0.
+- [esmaycat/Message Components](https://gist.github.com/esmaycat/500eafdad0aaf278b94c612764688976) - This gist shows you how to use message components in discord.py 2.0.
 - [advaith1/Intents Explainer](https://gist.github.com/advaith1/e69bcc1cdd6d0087322734451f15aa2f) - If you're wondering what Gateway Intents are, what Privileged Intents are, why your bot can't see statuses, or why your bot can't see member joins anymore, then this page should explain it to you!
 - [cibere/Defer Response](https://gist.github.com/cibere/7e1356575780e716d2e3a23ea2bcf6da) - The defer response, defers the interaction response. This is typically used when the interaction is acknowledged and an optional secondary action will be done later. When deferring, you get up to 15 minutes to respond instead of the normal 3 seconds.
 - [Jeftaei/AppCommandErrorhandler.py](https://gist.github.com/Jeftaei/d0bad5044f1192a4c454f95a6b591d53) - A robust error handler for discord.py commands, including app commands.