Add icons to radio in demo

alfa-client/apps/demo/src/app/app.component.html

alfa-client/apps/demo/src/app/app.component.ts

alfa-client/libs/design-system/src/assets/svgs/doc.svg

alfa-client/libs/design-system/src/assets/svgs/empty.svg

alfa-client/libs/design-system/src/assets/svgs/img.svg

alfa-client/libs/design-system/src/assets/svgs/json.svg

alfa-client/libs/design-system/src/assets/svgs/pdf.svg

alfa-client/libs/design-system/src/assets/svgs/xml.svg

alfa-client/libs/design-system/src/index.ts

...b/form/radio-button-card/radio-button-card.component.html

...lib/form/radio-button-card/radio-button-card.component.ts

.../src/lib/icons/download-icon/download-icon.component.html

...em/src/lib/icons/download-icon/download-icon.component.ts

.../design-system/src/lib/tailwind-preset/tailwind.config.js

...c/lib/upoad-file-button/upload-file-button.component.html

...src/lib/upoad-file-button/upload-file-button.component.ts