fix: install pnpm command

Dockerfile.client

@@ -8,19 +8,19 @@ RUN corepack enable
 COPY . /app
 # Set Directory
 WORKDIR /app
-# Copies package.json & pnpm-lock file
-COPY package.json .
-COPY pnpm-lock.yaml .
 # Install deps & build
+FROM base AS prod-deps
+RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm install --prod --frozen-lockfile
+
 FROM base AS build
 RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm install --frozen-lockfile
-COPY . ./
 RUN pnpm build:client
 
 # Stage 2
 # Nginx image
 FROM nginx:stable-alpine
 #
+COPY --from=prod-deps /app/node_modules /usr/share/nginx/html
 COPY --from=build /app/dist /usr/share/nginx/html
 # Delete nginx default config file
 RUN rm /etc/nginx/conf.d/default.conf