fix: create or reload API on addition, modification or deletion of related files in zencodeDir

[matteo-cristino]

• fix: detect also update and delete as changes
• fix: on change reload also public directory
• chore(cli): fix typo in port option documentation
• chore(openapi): remove an async leftover
• refactor: throw an error if the reload fails
• fix: on change do not stop and restart the app, just reloaa the routes
• chore(index): apply prettier
• refactor: create a file to handle responses
• refactor(directory): add one event handler for each event emitted from live-directory
• fix: on creation, update or removal of file that defines an endpoint regenerate the correct endpoint instead of reloading all of them

[github-actions[bot]]

:tada: This PR is included in version 1.36.3 :tada:

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