π [i18n-KO] Translated `main_classes/optimizer_schedules.md` to Korean (#39713)
* docs: ko: main_classes/optimizer_schedules
* feat: nmt draft
* fix: improve TOC anchors and expressions in optimizer_schedules
- Add TOC anchors to all section headers
- Fix terminology and improve Korean expressions
* fix: Correct translation of 'weight decay fixed' to 'κ°μ€μΉ κ°μ κ° μ μ©λ'
Changed 'κ°μ€μΉ κ°μ κ° μμ λ' to 'κ°μ€μΉ κ°μ κ° μ μ©λ' for more accurate translation of 'weight decay fixed' in the context of optimization.
* fix: Use more natural Korean inheritance expression
Changed 'μμ μμλ°λ' to 'μ μμλ°λ' to follow natural Korean grammar patterns for inheritance terminology.
* fix: Use consistent 'λ―ΈμΈ μ‘°μ ' translation for 'finetuned models'
Changed 'νμΈνλλ' to 'λ―ΈμΈ μ‘°μ λ λͺ¨λΈ' to follow the established translation glossary for 'finetuned models' terminology.