add: user balance

add: books, borrowings, home, login, membership, register, reward, userinsights, wishlist, themes

add: blazor web assembly.

add: removed firebase json file

add: fix user insights active ranking, rewards theme changes

add: pagination, book filter

add: wishlist and favourite features

add: change the whole BlazorFrontend theme to Mystic Lavender Hue

add: book cover fix

add: books crud, borrowing workflow, member crud, rewards page

add: authorization

add: blazorfrontend