tslib required

[k3ssen]

After installing the demo today, I got the following error:

 ERROR  Failed to compile with 3 errors                                                                       4:33:59 PM

Module build failed: Module not found:
"./node_modules/@k3ssen/symfony-vuetified/components/Form/FormWidgetMixin.ts" contains a reference to the file "tslib".
This file can not be found, please check it for typos or update it if the file got moved.

"./node_modules/babel-loader/lib/index.js??clonedRuleSet-14[0].rules[0].use[0]!./node_modules/ts-loader/index.js??clonedRuleSet-14[0].rules[0].use[1]!./node_modules/vue-loader/lib/index.js??vue-loader-options!./assets/components/SvTextEditor.vue?vue&type=script&lang=ts&" contains a reference to the file "tslib".
This file can not be found, please check it for typos or update it if the file got moved.

"./node_modules/babel-loader/lib/index.js??clonedRuleSet-14[0].rules[0].use[0]!./node_modules/ts-loader/index.js??clonedRuleSet-14[0].rules[0].use[1]!./node_modules/vue-loader/lib/index.js??vue-loader-options!./node_modules/@k3ssen/symfony-vuetified/components/SvApp.vue?vue&type=script&lang=ts&" contains a reference to the file "tslib".
This file can not be found, please check it for typos or update it if the file got moved.

it is resolved by yarn add tslib, but this wasn't nessessary before. TODO: find out why (perhaps a dependency version that has changed) and add it to package and/or instruction if needed.

[k3ssen]

Cause:
There's a difference in "chrome-trace-event":
In version v1.0.2 there's a "tslib": "^1.9.0" dependency, which has been removed in version v1.0.3, which happened in samccone/chrome-trace-event@d5e472c#diff-7ae45ad102eab3b6d7e7896acd08c427a9b25b346470d7bc6507b6481575d519

TODO: if possibile, remove the need for the tslib; Otherwise it must be added to packages.json

[k3ssen]

"importHelpers": true is now removed from tsconfig