* Setup stricter linting for typescript
* make `import/no-unresolved` an error everywhere
* use prettier to format `.vscode/settings.default.json`
* address PR comments
* ensure that eslint runs on all frontend code
* remove tslint from `design-system`
* enable prettier and eslint-prettier for `design-system`
* Delete tslint.json
* use a single editorconfig for the repo
* enable prettier for all code in `design-system`
* more linting fixes on design-system
* ignore coverage for git and prettier
* lintfix on editor-ui
