npm run build throws warnings

[lkiesow]

Running npm run build you get a lot of warnings. There should be none:

%> npm run build

> admin-ui-picard@0.1.0 build
> react-app-rewired build

Creating an optimized production build...
One of your dependencies, babel-preset-react-app, is importing the
"@babel/plugin-proposal-private-property-in-object" package without
declaring it in its dependencies. This is currently working because
"@babel/plugin-proposal-private-property-in-object" is already in your
node_modules folder for unrelated reasons, but it may break at any time.

babel-preset-react-app is part of the create-react-app project, which
is not maintianed anymore. It is thus unlikely that this bug will
ever be fixed. Add "@babel/plugin-proposal-private-property-in-object" to
your devDependencies to work around this error. This will make this message
go away.
  

Treating warnings as errors because process.env.CI = true.
Most CI servers set it automatically.

Failed to compile.

Warning
(1:49321) autoprefixer: Gradient has outdated direction syntax. New syntax is like `to left` instead of `right`.

Warning
(1:91044) autoprefixer: start value has mixed support, consider using flex-start instead

[eslint] 
src/components/configuration/partials/wizard/NewThemeWizard.tsx
  Line 13:10:  'Details' is defined but never used  @typescript-eslint/no-unused-vars

src/components/events/partials/ModalTabsAndPages/EventDetailsAssetAttachmentDetails.tsx
  Line 147:13:  Anchors must have content and the content must be accessible by a screen reader  jsx-a11y/anchor-has-content

src/components/events/partials/ModalTabsAndPages/EventDetailsAssetCatalogDetails.tsx
  Line 145:13:  Anchors must have content and the content must be accessible by a screen reader  jsx-a11y/anchor-has-content

src/components/events/partials/ModalTabsAndPages/EventDetailsAssetPublicationDetails.tsx
  Line 147:13:  Anchors must have content and the content must be accessible by a screen reader  jsx-a11y/anchor-has-content

src/components/events/partials/ModalTabsAndPages/EventDetailsPublicationTab.tsx
  Line 72:16:  Anchors must have content and the content must be accessible by a screen reader  jsx-a11y/anchor-has-content

src/components/events/partials/modals/StartTaskModal.tsx
  Line 96:10:  React Hook useEffect has a missing dependency: 'formik'. Either include it or remove the dependency array. Outer scope values like 'page' aren't valid dependencies because mutating them doesn't re-render the component  react-hooks/exhaustive-deps

src/components/shared/TableFilterProfiles.tsx
  Line 9:2:   'editFilterProfile' is defined but never used          @typescript-eslint/no-unused-vars
  Line 46:9:  'currentlyEditing' is assigned a value but never used  @typescript-eslint/no-unused-vars

src/components/shared/TableFilters.tsx
  Line 1:17:    'createRef' is defined but never used                                              @typescript-eslint/no-unused-vars
  Line 27:10:   'parseISO' is defined but never used                                               @typescript-eslint/no-unused-vars
  Line 312:37:  Array.prototype.map() expects a value to be returned at the end of arrow function  array-callback-return

src/components/shared/TimeSeriesStatistics.tsx
  Line 54:8:   'datePickerStyle' is assigned a value but never used                                                                                                                                                                                                                                                                                                                      @typescript-eslint/no-unused-vars
  Line 215:7:  Anchors must have content and the content must be accessible by a screen reader                                                                                                                                                                                                                                                                                           jsx-a11y/anchor-has-content
  Line 268:8:  Anchors must have content and the content must be accessible by a screen reader                                                                                                                                                                                                                                                                                           jsx-a11y/anchor-has-content
  Line 268:8:  The href attribute is required for an anchor to be keyboard accessible. Provide a valid, navigable address as the href value. If you cannot provide an href, but still need the element to resemble a link, use a button and change it with appropriate styles. Learn more: https://github.com/jsx-eslint/eslint-plugin-jsx-a11y/blob/HEAD/docs/rules/anchor-is-valid.md  jsx-a11y/anchor-is-valid
  Line 285:8:  Anchors must have content and the content must be accessible by a screen reader                                                                                                                                                                                                                                                                                           jsx-a11y/anchor-has-content
  Line 285:8:  The href attribute is required for an anchor to be keyboard accessible. Provide a valid, navigable address as the href value. If you cannot provide an href, but still need the element to resemble a link, use a button and change it with appropriate styles. Learn more: https://github.com/jsx-eslint/eslint-plugin-jsx-a11y/blob/HEAD/docs/rules/anchor-is-valid.md  jsx-a11y/anchor-is-valid

src/components/shared/wizard/SelectContainer.tsx
  Line 19:16:  'meta' is assigned a value but never used  @typescript-eslint/no-unused-vars

src/components/users/partials/wizard/NewUserWizard.tsx
  Line 75:9:  React Hook useEffect has a missing dependency: 'formik'. Either include it or remove the dependency array. Outer scope values like 'tab' aren't valid dependencies because mutating them doesn't re-render the component  react-hooks/exhaustive-deps

src/utils/bulkActionUtils.ts
  Line 4:10:  'useAppDispatch' is defined but never used  @typescript-eslint/no-unused-vars