How to create a Unicode slug for a Unicode title?

@laverna_hirthe 

A Unicode slug is a simplified, URL-friendly version of a title. To create a Unicode slug for a Unicode title, you can follow these steps:

1. Convert the title to lowercase.
2. Remove any special characters and punctuation marks, and replace them with hyphens or spaces.
3. Replace any whitespace characters with a single hyphen.
4. Remove any consecutive hyphens.
5. Remove any leading or trailing hyphens.

For example, to convert the title "Unicode Characters: An Introduction" to a Unicode slug, you would perform the following steps:

1. Convert to lowercase: "unicode characters: an introduction"
2. Remove special characters: "unicode characters an introduction"
3. Replace whitespace with hyphen: "unicode-characters-an-introduction"
4. Remove consecutive hyphens: "unicode-characters-an-introduction"
5. Remove leading/trailing hyphens: "unicode-characters-an-introduction"

Note: It is important to check for edge cases where the output may be a reserved word, such as "new" or "delete".