Improved legibility of REST Mock interface and various fixes (#266)

Reviewed-on: #266
Reviewed-by: Mikolaj Widla <widlam@noreply.example.com>
Co-authored-by: Adam Bem <adam.bem@zoho.eu>
Co-committed-by: Adam Bem <adam.bem@zoho.eu>

Frontend/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:latest as build-stage
+FROM node:20.9.0-bullseye-slim as build-stage
 WORKDIR /app
 COPY package*.json ./
 RUN npm install
@@ -7,7 +7,7 @@ RUN npm run build
 
 
 
-FROM nginx:stable-alpine as production-stage
+FROM nginx:stable-alpine3.17-slim as production-stage
 RUN mkdir /app
 
 RUN apk add --no-cache tzdata
@@ -20,7 +20,7 @@ EXPOSE 80
 EXPOSE 443
 
 
-FROM node:latest as dev
+FROM node:20.9.0-bullseye-slim as dev
 WORKDIR /app
 COPY package*.json ./
 RUN npm install