Feature/frontend login form

[ZathrasXI]

Changes made:

• Created a '/login' page
• Moved the remittance form to '/remittance'
• Create a bare home page
• Can toggle themes from each page
• Fixed a bug in remittance form that prevent being able to type into input fields

You need to navigate the app by using the navbar.... The app will crash if you go to a page by typing a URL, e.g. localhost:9001/login it seems like this is expected behaviour because there is no backend connected to the React app to serve the resources. At least that is what I understand from articles such as Fixing the “cannot GET /URL” error on refresh with React Router (or how client side routers work)

[koreanMike513]

happened to fail after all codes being mixed up