Remove yarn from project

ui/docker-dev.dockerfile

@@ -6,10 +6,9 @@ WORKDIR /app
 
 # Copy dependency-related files
 COPY package.json ./
-COPY yarn.lock ./
 
 # Install project dependencies
-RUN yarn install
+RUN npm install
 
 # Expose ports 8080, which the dev server will be bound to
 EXPOSE 8080