Fixed #38438 - dev docs - ui troubleshooting

[MariaAga]

[MariaAga]

@kmalyjur for me there is always an error message (instead of the page I'm trying to open in foreman) when I open foreman that I have to run bundle exec rake db:migrate (If its available) did you have to run it and not see an error message?

[MariaAga]

If this get merged after vendor removal, add for error: consumes:64 Uncaught (in promise) Error: Shared module X doesn't exist in shared scope default Is caused by adding a package to package.json and forgetting to add it to config/webpack.vendor.js

[MariaAga]

Thanks! added the errors and fixed the commit message

[kmalyjur]

Great, @ofedoren could you please merge it?