feat(UserModal): integrating endpoint to create user and fixing tests

See merge request !13

refact(general): removing unused line of codes

See merge request !12

fix(Header): fixing mock of Header component

See merge request !11

feat(ListUsers): adding list user and authenticate user services

See merge request !10

tests(Components): adding tests from components

See merge request !9

tests(Components): adding tests

See merge request !8

feat(UserModal): adding new components and refact anothers

See merge request !7

feat(SideBar): adding sidebar navigation and users page

See merge request !6

feat(Header): adding header and useAuth hook

See merge request !5

feat(UserTable): creating BaseTable and UserTable

See merge request !4

Task/creating base modal

See merge request !3