Concreate type for `state` parameter in `LanguageModeProvider` class

[DebanKsahu]

Describe the bug
Target Code:

req-lab/editor-core/src/commonMain/kotlin/com/reqlab/editor/core/LanguageMode.kt

Line 42 in 99a261b

fun tokenizeLine(line: String, lineNumber: Int, state: Any? = null): Pair<List<Token>, Any?>

• Currently the state parameter in tokenizeLine method of LanguageModeProvider class use Any? type which allowing any type to be assigned to the parameter.
• So the plan to use a concrete type through Generics and Interfaces.

Environment (please complete the following information):

• OS: Windows 11
• Java: 21
• App version / commit SHA: 1.16.0
• Module/area: editor-core
• Run mode: None