feat: docs (#1080)

- Added typedoc and `build:docs` script


ticket: [CLNP-2426]

[CLNP-2426]:
https://sendbird.atlassian.net/browse/CLNP-2426?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

Author: bang9

.gitignore

@@ -36,4 +36,7 @@ yarn-error.log*
 
 .idea/
 
-*storybook.log
+*storybook.log
+
+# docs
+/docs

docs/TOC.mdx

@@ -53,6 +53,7 @@
     "storybook": "storybook dev -p 6006",
     "start:storybook": "yarn storybook",
     "start:apps:testing": "yarn workspace @uikit-app/testing dev",
+    "build:docs": "node ./scripts/build_docs.mjs",
     "build:storybook": "storybook build",
     "build:apps:testing": "yarn workspace @uikit-app/testing build"
   },
@@ -137,6 +138,7 @@
     "stylelint": "^13.0.0",
     "stylelint-config-sass-guidelines": "^7.0.0",
     "ts-pattern": "^4.2.2",
+    "typedoc": "^0.25.13",
     "typescript": "^5.4.5",
     "vite": "^5.1.5",
     "vite-plugin-svgr": "^4.2.0"