ref: #5311

* improvement: oauth "scopes" init parameter

* improvement: add "select all" and "select none" to oauth scopes popup

* Add PKCE support.

* Fix tests

* Update oauth2.md

* Rename usePkce

* Fix the BrokenComponent error

* Update oauth2.md

* Remove isCode variable. Remove uuid4 dependency.

* Remove utils functions

* Import crypto

* Fix tests

* Fix the tests

* Cleanup

* Fix code_challenge generation

* Move code challenge and verifier to utils for mocks. Update tests.

* Mock the PKCE methods in the utils file properly.

* Add missing expect

* use target-method spies

* Add comments to explain test values.

* Get rid of jsrsasign.

Remove usage of Google Fonts to avoid any data protection issue. Using a
CDN will leak data to a third party that can be simply avoided by using
system fonts instead.

Furthermore the usage of CDNs can cause legal issues in EU countries.

* fix: provide svg assets through React app instead of relying on HTML

* fix stylistic inconsistencies in HTML assets

This change aims to display the oauth error to the user when the autnetication process fails.

Close #4048

This change separates:
the Model (the one on the model-example section)
from
the Models (the ones at the bottom)

* Updated docs for correct usage of SWAGGER_JSON

* Removed href attribute from anchor tag if deeplinking is disabled

* If deeplinking is disabled the anchor tag has no href attribute as a result the mouse pointer is not a pointer as it is no longer a hyperlink, setting the cursor explicitly to pointer.

* Refactor: use ternary operators at attribute level instead of element level

* Only polyfill Promise if it doesn't exist at all

* v3.1.7

* Typo fix

* fix #3624

* Squash commit: OAS3 Try-It-Out changes

* Parse JSON requestBodies so Client can consume them correctly

* Use Client branch

* Fix typo in swagger-client dependency

* Fix property names being displayed in array models

* Working on refactoring of model.jsx

* Fit linter and tests

* Add comment to array-model for to clarify change. Rework logic in `Model.render()` to fix bug with overriding name and schema from `$ref` definition.

* v3.2.0

* fromJS does not maintain order of object properties. Use a reviver function with fromJS inside the response.jsx component for the passed down schema prop.

* OAS3 Accept header control: Component-side

* OAS3 Accept header control: State-side

* Update response.jsx to use already existing, fromJSOrdered function

* Added test for response.jsx to make sure properties are passed to `ModelExample` component in the correct order

* Remove `it.only` from new test

* Fixes #3596

Wrap `isShownKey` values in a function that replaces spaces with underscores. When parsing the hash on route change, replace the spaces in the values with underscores again.

* Replace spaces with underscores when setting the hash value and inserting the ID into the DOM. Escape the deep link path when querying for the DOM element on hash change.

* Handle null value in createDeepLinkPath

* Add extra check for String types in `createDeepLinkPath`. Add `trim()` call on passed-in value in `createDeepLinkPath`. Added unit tests for new deep link util functions.

* LINTING!

* Roll back win import removal

Lost in merge conflict....

* More merge oversights...

server test json files via webpack-dev-server

also fix indentations of files