[FEAT/#6] Study 구현

[starshape7]

📌𝗧𝗮𝘀𝗸

• RecruitingStudy 구현
• PreferLocationStudy 구현
• Study/home 구현
• Study/Calendar 구현
• Study/BuiltinBoard 구현
• Study/Gallery 구현
• Study/TodoList 구현

💡𝗥𝗲𝗳𝗲𝗿𝗲𝗻𝗰𝗲