Resolve "search controller and service - unit test"

Closes #19

See merge request !21

Resolve "temp6"

Closes #17

See merge request !20

# Conflicts:
#   src/main/java/com/example/freshonline/controller/CategoryController.java

Resolve "temp5"

Closes #16

See merge request !19

Resolve "temp03"

Closes #15

See merge request !18

Resolve "temp2"

Closes #14

See merge request !17

Resolve "temp issue"

Closes #7

See merge request !16

# Conflicts:
#	src/main/java/com/example/freshonline/controller/UserController.java
#	src/main/java/com/example/freshonline/service/UserService.java
#	src/main/resources/application.properties