This commit adds support for the todo-comments plugin. It includes the following changes:
- Added a new file `todo-comments.lua` in the `lua/absolute/after` directory.
- Imported the `todo-comments` module.
- Set up the `todo-comments` plugin with default options.
- Defined key mappings for jumping to previous and next todo comments.
- Defined key mappings for opening comments in Telescope and Trouble.
- Added a new file `todo-comments.lua` in the `lua/absolute/plugins` directory.
- Exported a table with the configuration for the `todo-comments` plugin, including its dependencies and a config function that requires the `absolute.after.todo-comments` module.
