✨ Add Heading component

src/components/common/Heading.stories.jsx

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+import * as React from "react"
+import * as ReactDOM from "react-dom"
+import * as Decorators from "../../utils/Decorators"
+import { Heading as HeadingComponent } from "./Heading"
+
+
+export default {
+    component: HeadingComponent,
+    title: "Common/Heading",
+    decorators: [Decorators.Bluelib],
+}
+
+
+const HeadingTemplate = props => (
+    <HeadingComponent {...props}>
+        The United Cantons capitulate!
+    </HeadingComponent>
+)
+
+
+export const HeadingLevel1 = HeadingTemplate.bind({})
+HeadingLevel1.args = {
+    level: 1,
+}
+
+export const HeadingLevel2 = HeadingTemplate.bind({})
+HeadingLevel2.args = {
+    level: 2,
+}
+
+export const HeadingLevel3 = HeadingTemplate.bind({})
+HeadingLevel3.args = {
+    level: 3,
+}
+
+export const HeadingLevel4 = HeadingTemplate.bind({})
+HeadingLevel4.args = {
+    level: 4,
+}
+
+export const HeadingLevel5 = HeadingTemplate.bind({})
+HeadingLevel5.args = {
+    level: 5,
+}
+
+export const HeadingLevel6 = HeadingTemplate.bind({})
+HeadingLevel6.args = {
+    level: 6,
+}
+

src/components/common/Heading.tsx

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+import * as React from "react"
+import * as ReactDOM from "react-dom"
+import * as Types from "../../types"
+import {BaseElement} from "../BaseElement"
+import mergeClassNames from "classnames"
+
+
+export interface HeadingProps extends Types.BluelibHTMLProps<HTMLHeadingElement> {
+    level: 1 | 2 | 3 | 4 | 5 | 6,
+}
+
+
+const HEADING_KINDS_BY_LEVEL = {
+    1: "h1",
+    2: "h2",
+    3: "h3",
+    4: "h4",
+    5: "h5",
+    6: "h6",
+}
+
+
+export function Heading({level, ...props}: HeadingProps): JSX.Element {
+    props.bluelibClassNames = mergeClassNames(props.bluelibClassNames, "heading")
+
+    return (
+        <BaseElement kind={HEADING_KINDS_BY_LEVEL[level]} {...props}/>
+    )
+}