Improve documentation (#82)

* Propose new doc architecture

* Many improvements to documentation (styling, structure...)

* Remove modules added inadvertently + continue improving styling

* Swizzle navbar item to add support for custom icon

* Additional doc styling

* Setup docs for API and redirect homepage for docs

docs/src/theme/DocSidebarItem/Link/index.js

@@ -0,0 +1,50 @@
+import React from 'react';
+import clsx from 'clsx';
+import {ThemeClassNames} from '@docusaurus/theme-common';
+import {isActiveSidebarItem} from '@docusaurus/theme-common/internal';
+import Link from '@docusaurus/Link';
+import isInternalUrl from '@docusaurus/isInternalUrl';
+import IconExternalLink from '@theme/Icon/ExternalLink';
+import styles from './styles.module.css';
+export default function DocSidebarItemLink({
+  item,
+  onItemClick,
+  activePath,
+  level,
+  index,
+  ...props
+}) {
+  const {href, label, className, autoAddBaseUrl, customProps = {}} = item;
+  const isActive = isActiveSidebarItem(item, activePath);
+  const isInternalLink = isInternalUrl(href);
+  return (
+    <li
+      className={clsx(
+        ThemeClassNames.docs.docSidebarItemLink,
+        ThemeClassNames.docs.docSidebarItemLinkLevel(level),
+        'menu__list-item',
+        className,
+      )}
+      key={label}>
+      <Link
+        className={clsx(
+          'menu__link',
+          !isInternalLink && styles.menuExternalLink,
+          {
+            'menu__link--active': isActive,
+          },
+        )}
+        autoAddBaseUrl={autoAddBaseUrl}
+        aria-current={isActive ? 'page' : undefined}
+        to={href}
+        {...(isInternalLink && {
+          onClick: onItemClick ? () => onItemClick(item) : undefined,
+        })}
+        {...props}>
+        <i className={"sidebar-item-icon fa-light " + (customProps && customProps.icon ? ("fa-"+customProps.icon) : "fa-notdef")}></i>
+        {label}
+        {!isInternalLink && <IconExternalLink />}
+      </Link>
+    </li>
+  );
+}

docs/src/theme/DocSidebarItem/Link/styles.module.css

@@ -0,0 +1,3 @@
+.menuExternalLink {
+  align-items: center;
+}