feat(shortcode): add mapbox shortcode (#190)

* feat(shortcode): add mapbox shortcode

* docs: split shortcodes into built-in shortcodes and extended shortcodes

* docs(shortcodes): add docs for mapbox shortcode

* docs(shortcodes): fix an error in shortcodes docs

exampleSite/content/posts/basic-markdown-syntax.en.md

@@ -20,6 +20,14 @@ featuredImagePreview: ""
 toc: true
 autoCollapseToc: true
 math: false
+mapbox:
+    accessToken: ""
+    lightStyle: ""
+    darkStyle: ""
+    navigation: true
+    geolocate: true
+    scale: true
+    fullscreen: true
 lightgallery: true
 linkToMarkdown: true
 share:
@@ -769,5 +777,5 @@ With a reference later in the document defining the URL location:
 [id]: https://octodex.github.com/images/dojocat.jpg  "The Dojocat"
 
 {{< admonition tip >}}
-**LoveIt** theme has [special shortcode for image](../theme-documentation-shortcodes/#image), which provides more features.
+**LoveIt** theme has [special shortcode for image](../theme-documentation-extended-shortcodes/#image), which provides more features.
 {{< /admonition >}}