Moved frontend of REST Mock to frontend container (solves #168)

Co-authored-by: Adam Bem <adam.bem@zoho.eu>
Reviewed-on: #186
Reviewed-by: Mikolaj Widla <widlam@noreply.example.com>

Backend/mocked-services/src/main/java/com/r11/tools/controller/MainController.java

@@ -1,27 +0,0 @@
-package com.r11.tools.controller;
-
-import lombok.SneakyThrows;
-import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.servlet.ModelAndView;
-
-/**
- * Class responsible for returning homepage html
- * @author Gabriel Modzelewski
- */
-@Controller
-@RequestMapping("/")
-public class MainController {
-    /**
-     * Default path to get the homepage
-     * @return the view of homepage
-     */
-    @SneakyThrows
-    @GetMapping
-    public ModelAndView showHome(){
-        ModelAndView mov = new ModelAndView();
-        mov.setViewName("html/mock");
-        return mov;
-    }
-}