MangaLivre: Decrypt API responses and self-heal rotated keys

[Deivison-Costaa]

Chapters fail with HTTP 403: the site moved its reading gate to a double-submit toon_v cookie plus Rabbit-cipher (CryptoJS) response bodies whose key rotates daily.

• Decrypt the {"<dataKey>":"<ciphertext>"} bodies (MangaLivreDecryptor).
• On 403, prime the toon_v cookie via a hidden WebView (TokenResolver).
• Re-extract the rotating key constants from the live JS bundle, so daily rotations self-heal without a new release.

Closes #17638

Verified end-to-end on a real device: opened never-cached chapters, including the self-heal path with deliberately stale built-in constants.

Checklist:

• Updated versionCode value in build.gradle.kts
• Updated baseVersionCode in build.gradle.kts (if updated multisrc theme code)
• Referenced all related issues in the PR body (e.g. "Closes #xyz")
• Set the contentWarning configuration in build.gradle.kts appropriately
• Have not changed source names
• Have explicitly kept the id if a source's name or language were changed
• Have tested the modifications by compiling and running the extension through Android Studio
• Have removed web_hi_res_512.png when adding a new extension
• This PR is AI-assisted, I have reviewed the changes manually and confirmed they are not slop