✨ Implement design system (#2050)

* split up main, sass imports, import new nds

* migrate most buttons

* update sizes based on feedback

* update copy buttons

* update executions list

* fix issues

* force message box buttons

* update warning color

* update more buttons

* wrap message box buttons

* update last component

* lint fixes

* add build report step

* breakout imports

* set package.json

* fix notification bug

* clean up imports

* use build directories directly

* update imports

* remove xl size

* update number inputs

* fix input width

* update line height, fix icon bug

* fix up editor

* fix spacing between buttons

* Reset line height

* revert changes to this

* revert changes

* clean up button sizes

* change to outline

* update select height

* update tooltip

* remove build report step

* clean up impl

* remove regenerator runtime

* add design system repo

* apply editorconfig

* apply editor config prettier

* lint issue

* switch to tabs

* switch to single space

* update eslintrc

* remove git modules

* update sass package

* support dart sass

* add build

* update dependency

* update contributing.md

* set repo

* update versions

* add tslint step

* update spacing to spaces, add dev step

* add test step

* add test step

* update browser lint rc

* remove .github

* delete .gitignore

* set comment for icons

* remove preview link

* update button interface

* update types

* set types

* clean up intro

* update intro

* remove assets

* move into preview

* remove headline comment

* reduce theme build

* loading executions

* match deps versions

* match deps versions

* fix lint issues

* fix lint issues

* update callback

* disable codacy for docs.css

* fix storybook issues

* add design system to docker image

* update spacing around delete sort button

* set line height to stop juggling headline

* update sizes

* clean up vars

* fix scss issues

* update button vars

* add shade color

* fix button without click

* fix buttons bug

* fix bug with executions list

* clean up theme

* update link styling

* fix typo

* run prettier

* 🎨 code format

* 🎨 code format

* 🔥 remove empty files

* ✨ N8n 2284 new inputs (#2075)

* implement inputs

* prettier fixes

* revert unnessary change

* move input components and tooltip

* remove form elements

* move select

* update input placements

* update sizes

* update credentails

* clean up select size

* fix caret issue

* update inputs

* clean up select

* fix tags dropdown border

* clean up tags input

* fix workflow name bug

* clean up select here

* add sizes template

* fix option caret

* fix input sizes

* update date input size

* remove tags input override

* update prop

* update input size

* center run data inputs

* update disabled colors

* update execution header

* update scrollbar

* update text area spacing

* fix items in header

* update run data tooltip

* remove popover

* update prefix positions

* add filterable demo

* address design issues

* fix input issues, flip boolean input to text

* update input sufffix colors

* remove override

* speed up switch, fix toggle spacing issue

* update icon

* remove icon classes

* clean up inputs

* clean up inputs with icons

* update input spacing again

* update suffix position

* build

* Add support for xlarge inputs

* fix input issues

* fix input issue

* update listeners

* update number inputs for settings

* update append/prepend spacing

* clean up inputs, set expression input as text

* fix type errors

* fix workflow number input

* fix tags dropdown bug

* fix bugs

* fix menu item bug

* remove font weight from link element

* remove default

* fix select option

* fix contrast issues

* allow overflow x for multi selects

* fix icon

* update options select

* fix issue that resolves expression to null

* update how actions are centered

* fix up selects

* update selects to support limiting size

* update option styles

* ⚡ Apply suggestions BHesseldieck

Co-authored-by: Ben Hesseldieck <1849459+BHesseldieck@users.noreply.github.com>

* 🎨 code format

Co-authored-by: Jan <janober@users.noreply.github.com>
Co-authored-by: Ben Hesseldieck <1849459+BHesseldieck@users.noreply.github.com>
Co-authored-by: Ben Hesseldieck <b.hesseldieck@gmail.com>

* ⏪ Revert "🔥 remove empty files"

This reverts commit e91ace4e52403f4a6b00b7be68b86fc48b7d8fef.

* ⚡ Remove private from n8n-design-system package

* 🎨 Change to spaces to stay consistent with editorconfig & others
package files

* ⚡ Fix year in license

Co-authored-by: Ben Hesseldieck <1849459+BHesseldieck@users.noreply.github.com>
Co-authored-by: Ben Hesseldieck <b.hesseldieck@gmail.com>
Co-authored-by: Jan <janober@users.noreply.github.com>
Co-authored-by: Jan Oberhauser <jan.oberhauser@gmail.com>

packages/design-system/.storybook/preview.js

@@ -0,0 +1,65 @@
+import './font-awesome-icons';
+import './storybook.scss';
+
+import lang from 'element-ui/lib/locale/lang/en';
+import locale from 'element-ui/lib/locale';
+
+import Vue from 'vue';
+
+locale.use(lang);
+
+// https://github.com/storybookjs/storybook/issues/6153
+Vue.prototype.toJSON = function () {
+	return this;
+};
+
+export const parameters = {
+	actions: {
+		argTypesRegex: '^on[A-Z].*',
+	},
+	controls: {
+		matchers: {
+			color: /(background|color)$/i,
+			date: /Date$/,
+		},
+	},
+	backgrounds: {
+		default: '--color-background-xlight',
+		values: [
+			{
+				name: '--color-background-dark',
+				value: 'var(--color-background-dark)',
+			},
+			{
+				name: '--color-background-base',
+				value: 'var(--color-background-base)',
+			},
+			{
+				name: '--color-background-light',
+				value: 'var(--color-background-light)',
+			},
+			{
+				name: '--color-background-lighter',
+				value: 'var(--color-background-lighter)',
+			},
+			{
+				name: '--color-background-xlight',
+				value: 'var(--color-background-xlight)',
+			},
+		],
+	},
+	themes: {
+		list: [
+			{
+				name: 'dark',
+				class: 'theme-dark',
+				color: '#000',
+			},
+		],
+	},
+	options: {
+		storySort: {
+			order: ['Docs', 'Styleguide', 'Atoms'],
+		},
+	},
+};