Error: ENOENT: no such file or directory, open '/app/dist//../templates/template.html'

#### Expected behaviour
running successfully

#### Actual behaviour
```
Error: ENOENT: no such file or directory, open '/app/dist//../templates/template.html'
at Object.openSync (node:fs:600:3)
at Object.readFileSync (node:fs:468:35)
at 31415 (/app/dist/server.min.js:612785:20589)
at __webpack_require__ (/app/dist/server.min.js:649632:42)
at 92448 (/app/dist/server.min.js:313917:18)
at __webpack_require__ (/app/dist/server.min.js:649632:42)
at 49719 (/app/dist/server.min.js:314180:22)
at __webpack_require__ (/app/dist/server.min.js:649632:42)
at 48862 (/app/dist/server.min.js:313550:29)
at __webpack_require__ (/app/dist/server.min.js:649632:42)
at 66611 (/app/dist/server.min.js:304200:16)
at __webpack_require__ (/app/dist/server.min.js:649632:42)
at 80341 (/app/dist/server.min.js:313367:18)
at __webpack_require__ (/app/dist/server.min.js:649632:42)
at /app/dist/server.min.js:649729:37
at Object. (/app/dist/server.min.js:649731:12) {
errno: -2,
syscall: 'open',
code: 'ENOENT',
path: '/app/dist//../templates/template.html'
}
```

#### Reproduction steps
1. install module in app
```
yarn add highcharts-export-server
```
1. build app and bundling to `server.min.js`
1. run server.min.js
1. see error.

dockerfile setting
```
FROM node:18.12.1-alpine3.15 as base

RUN apk add --no-cache \
chromium

ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true \
PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser

FROM base as builder
WORKDIR /app
COPY .npmrc package.json yarn.lock ./
RUN yarn --non-interactive
COPY . .

## Build backend
RUN yarn build

FROM base

WORKDIR /app
COPY --from=builder app/build dist

RUN npm install pm2 -g
EXPOSE $PORT

CMD ["pm2-runtime", "dist/server.min.js"]
```

when i run in dev env with node_modues, it works well.
dev dockerfile
```
FROM node:18.12.1-alpine3.15 as base

RUN apk add --no-cache \
chromium

ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true \
PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser

WORKDIR /app
COPY .npmrc package.json yarn.lock tsconfig.json ./
RUN yarn --non-interactive

CMD ["npx", "ts-node-dev", "--inspect", "-r", "tsconfig-paths/register", "./src/index.ts"]
```

is bundling(building) with highcharts-export-server not available?
should i set the highcharts-export-server to stand alone outside the BE app?