feat: adds possibility to trim/remove special characters before sorting

[hugop95]

Description

Based on this comment: https://github.com/azat-io/eslint-plugin-perfectionist/issues/175#issuecomment-2351483820, it would be interesting to be able to trim special characters before sorting. This way, _z (or :z) would be after a.

This PR adds a specialCharacters option (by default keep) with the following choices:

• keep: Current behavior.
• trim: Trims special characters on the left.
• remove: Removes all special characters before sorting.

to all rules:

• [x] sort-array-includes
• [x] sort-astro-attributes
• [x] sort-classes
• [x] sort-enums
• [x] sort-exports
• [x] sort-imports
• [x] sort-interfaces
• [x] sort-interesection-types
• [x] sort-jsx-props
• [x] sort-maps
• [x] sort-named-imports
• [x] sort-named-exports
• [x] sort-object-types
• [x] sort-objects
• [x] sort-sets
• [x] sort-svelte-attributes
• [x] sort-switch-case
• [x] sort-union-types
• [x] sort-variable-declarations
• [x] sort-vue-attributes

The large majority of code added is documentation and tests.

Important notes

• The regular expression used for trimming is /^[^A-Za-zÀ-ž]+/g.
• Accented characters are kept.
• Like the ignoreCase option, this does not affect matching-related options (customGroups). This only affects sorting-order evaluation

What is the purpose of this pull request?

• [x] New Feature