Add check for decodeFromString in MissingSerializableAnnotation lint rule

[TimoPtr]

Summary

Extend our current lint rule for detecting missing Serializable annotation introduce in #5368 to detect missing annotation in decodeFromString invocations.

Checklist

• New or updated tests have been added to cover the changes following the testing guidelines.
• The code follows the project's code style and best_practices.
• The changes have been thoroughly tested, and edge cases have been considered.
• Changes are backward compatible whenever feasible. Any breaking changes are documented in the changelog for users and/or in the code for developers depending on the relevance.

Screenshots

Any other notes

An issue has been open on the official repo Kotlin/kotlinx.serialization#3010 to see if they can do something about it.

[jpelgrom]

There is a TODO and commented out code. Are you still planning to do that in this PR? I have no idea how much work that would be so can't really guess.

[TimoPtr]

There is a TODO and commented out code. Are you still planning to do that in this PR? I have no idea how much work that would be so can't really guess.

It's a leftover.... I handled this cases already and the dead code needs to be removed.