docs: Integrate docusaraus for docs (#5482)

* feat:Integrate docusaraus for docs

* Update docs for Excalidraw

Co-authored-by: David Luzar <luzar.david@gmail.com>

* remove blogs

* remove blog authors

* get started docs

* typo

* add static assets

* change port number

* Add script to build docs only if docs updated

* dummy

* update script to be compatible with ignoreBuild in vercel

* remove script and dummy log

Co-authored-by: David Luzar <luzar.david@gmail.com>

docs/.gitignore

@@ -0,0 +1,20 @@
+# Dependencies
+/node_modules
+
+# Production
+/build
+
+# Generated files
+.docusaurus
+.cache-loader
+
+# Misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*