* v1-beta: (23 commits)
  [docs] Fix missing props in css-in-js examples (#7867)
  [docs] Small fixes after the next.js refactorization (#7851)
  [docs] Fix release script v2
  [docs] Fix release script
  v1.0.0-beta.6
  [CHANGELOG] Prepare v1.0.0-beta.6
  [docs] Some last improvement before the release (#7847)
  [docs] Show inherited components (#7846)
  [docs] Add a team page (#7842)
  [docs] Add a ROADMAP page (#7840)
  [TextField] Fix placeholder issue (#7838)
  [core] Better usage of the CI 🚀 (#7833)
  [RadioGroup] Rename selectedValue to value (#7832)
  [docs] Use next.js (#7759)
  [core] Update some dependencies (#7831)
  [icons] Release v1.0.0-beta.5
  [icons] Fix release
  [docs] Advanced table (#7824)
  [icons] Automate release process (#7823)
  [core] Fix size-limit warning (#7822)
  ...

# Conflicts:
#	docs/src/pages/demos/badges/badges.md
#	docs/src/pages/demos/cards/cards.md
#	docs/src/pages/demos/selection-controls/selection-controls.md
#	docs/src/pages/demos/stepper/stepper.md
#	pages/api/app-bar.md
#	pages/api/avatar.md
#	pages/api/badge.md
#	pages/api/bottom-navigation-button.md
#	pages/api/bottom-navigation.md
#	pages/api/button-base.md
#	pages/api/button.md
#	pages/api/card-actions.md
#	pages/api/card-content.md
#	pages/api/card-header.md
#	pages/api/card-media.md
#	pages/api/card.md
#	pages/api/checkbox.md
#	pages/api/chip.md
#	pages/api/circular-progress.md
#	pages/api/collapse.md
#	pages/api/dialog-actions.md
#	pages/api/dialog-content.md
#	pages/api/dialog-title.md
#	pages/api/dialog.md
#	pages/api/divider.md
#	pages/api/drawer.md
#	pages/api/fade.md
#	pages/api/form-control-label.md
#	pages/api/form-control.md
#	pages/api/form-group.md
#	pages/api/form-helper-text.md
#	pages/api/form-label.md
#	pages/api/grid-list-tile-bar.md
#	pages/api/grid-list-tile.md
#	pages/api/grid-list.md
#	pages/api/grid.md
#	pages/api/grow.md
#	pages/api/hidden.md
#	pages/api/icon-button.md
#	pages/api/icon.md
#	pages/api/input-label.md
#	pages/api/input.md
#	pages/api/linear-progress.md
#	pages/api/list-item-avatar.md
#	pages/api/list-item-icon.md
#	pages/api/list-item-secondary-action.md
#	pages/api/list-item-text.md
#	pages/api/list-item.md
#	pages/api/list-subheader.md
#	pages/api/list.md
#	pages/api/menu-item.md
#	pages/api/menu-list.md
#	pages/api/menu.md
#	pages/api/mobile-stepper.md
#	pages/api/mui-theme-provider.md
#	pages/api/paper.md
#	pages/api/radio-group.md
#	pages/api/radio.md
#	pages/api/snackbar-content.md
#	pages/api/snackbar.md
#	pages/api/svg-icon.md
#	pages/api/switch.md
#	pages/api/tab.md
#	pages/api/table-body.md
#	pages/api/table-cell.md
#	pages/api/table-head.md
#	pages/api/table-row.md
#	pages/api/table-sort-label.md
#	pages/api/table.md
#	pages/api/tabs.md
#	pages/api/text-field.md
#	pages/api/toolbar.md
#	pages/api/typography.md
#	typings/index.d.ts

* [typescript] Add test for style overrides.

* [typescript] Refactor typings to modules

...instead of ambient modules.

* renamed the styleSheet argument in withStyles to styles (#7819)

* [typescript] Create typings for TS when building. (#7820)

* [core] Fix size-limit warning (#7822)

* [icons] Automate release process (#7823)

* [docs] Advanced table (#7824)

* [icons] Fix release

* [icons] Release v1.0.0-beta.5

* [core] Update some dependencies (#7831)

* [icons] Update the dependencies

* [core] Update some dependencies

* [docs] Use next.js (#7759)

* [RadioGroup] Rename selectedValue to value (#7832)

* [core] Better usage of the CI 🚀 (#7833)

* [TextField] Fix placeholder issue (#7838)

* [docs] Add a ROADMAP page (#7840)

* [docs] Add a team page (#7842)

* [docs] Show inherited components (#7846)

* [docs] Some last improvement before the release (#7847)

* [CHANGELOG] Prepare v1.0.0-beta.6

* v1.0.0-beta.6

* [docs] Fix release script

* [docs] Fix release script v2

* [docs] Small fixes after the next.js refactorization (#7851)

* [docs] Fix missing props in css-in-js examples (#7867)

* [docs] Fix missing props in css-in-js examples

`this.classes.root` wouldn't work - `this.props.classes.root' would.

* Update css-in-js.md

* [typescript] Fix tests.

* [build] Copy .d.ts files to build folder.

* [typescript] Create module typings for icons.

* [typescript] Lint.

* [typescript] Add test for style overrides.

* [typescript] Refactor typings to modules

...instead of ambient modules.

* renamed the styleSheet argument in withStyles to styles (mui#7819)

* [typescript] Create typings for TS when building. (mui#7820)

* [core] Fix size-limit warning (mui#7822)

* [icons] Automate release process (mui#7823)

* [docs] Advanced table (mui#7824)

* [icons] Fix release

* [icons] Release v1.0.0-beta.5

* [core] Update some dependencies (mui#7831)

* [icons] Update the dependencies

* [core] Update some dependencies

* [docs] Use next.js (mui#7759)

* [RadioGroup] Rename selectedValue to value (mui#7832)

* [core] Better usage of the CI 🚀 (mui#7833)

* [TextField] Fix placeholder issue (mui#7838)

* [docs] Add a ROADMAP page (mui#7840)

* [docs] Add a team page (mui#7842)

* [docs] Show inherited components (mui#7846)

* [docs] Some last improvement before the release (mui#7847)

* [CHANGELOG] Prepare v1.0.0-beta.6

* v1.0.0-beta.6

* [docs] Fix release script

* [docs] Fix release script v2

* [docs] Small fixes after the next.js refactorization (mui#7851)

* [docs] Fix missing props in css-in-js examples (mui#7867)

* [docs] Fix missing props in css-in-js examples

`this.classes.root` wouldn't work - `this.props.classes.root' would.

* Update css-in-js.md

* [typescript] Fix tests.

* [build] Copy .d.ts files to build folder.

* [typescript] Create module typings for icons.

* [typescript] Lint.