Fix array being parsed as table header in TOML

[tancnle]

This ensures the table is pushed up to the root stack and not picked up as a value in the basic mix-in. I have also added a few more examples from the official doc for testing.

Before	After

Fixes https://github.com/rouge-ruby/rouge/issues/1719

📓 Troubleshooting notes

• Create a file containing the problematic text (named example.toml)

  link-libraries = ["mylibmylib"]

• Run ./bin/rougify debug example.toml

• Inspect the output

  👉🏼 Before

  ``` lexer: toml stack: [:root] stream: "link-libraries = [\"m" // snipped lexer: toml stack: [:root, :value] stream: "[\"mylibmylib\"]\n" trying: # entering: mixin :content entering: mixin :basic trying: # trying: # trying: # trying: # trying: # got: "[\"mylibmylib\"]" yielding: Name.Namespace, "[\"mylibmylib\"]" Text " " // snipped ```
  👉🏼 After

  ``` lexer: tom stack: [:root] stream: "link-libraries = [\"m" // snipped lexer: toml stack: [:root, :value] stream: " [\"mylibmylib\"]\n" trying: # entering: mixin :content entering: mixin :basic trying: # got: " " yielding: Text, " " Punctuation "=" // snipped ```

[tancnle]

👋🏼 @mrexodia could you kindly confirm if this address the reported issue? 🙏🏼

[mrexodia]

Looks good!