Changes

• 🐛 fix broken week-switcher
• 🐛 fix minHeight of window
• ♻️ refactor type imports
• 🔥 delete old mixins
• ♻️ move shortcuts, refactor mixin to store
• ♻️ refactor app into components
• ✨ add file store module
• ✨ add calendar store module
• ✨ add vuex