Add gdpr options

src/_mixins.scss

src/components/ClientSelection.tsx

src/components/DefaultPreview.scss

src/components/DefaultPreview.tsx

src/components/HomeserverOptions.scss

src/components/HomeserverOptions.stories.tsx

src/components/HomeserverOptions.tsx

src/components/LinkPreview.tsx

src/components/StyledCheckbox.scss

src/components/StyledCheckbox.tsx

src/components/Toggle.scss

src/components/Toggle.tsx

src/contexts/GlobalContext.tsx

src/contexts/HSContext.ts

src/imgs/chat-icon.svg

src/imgs/chevron-down.svg

src/imgs/telecom-mast.svg

src/imgs/tick.svg