[Frontend] create skeleton application form component and route

[dingtaoliu]

Create a skeleton application form component, and route it so that it can be accessed. The routing should be changed once we start implementing the authorization code, but for now it can just be /applications/new.

This skeleton application form is expected to have fields/questions added and modified in the future. For now, it will just include basic questions such as Name, Student ID, Year of Study, etc.