fix(): update .gitignore and remove unused VuePress files

Author: NarHakobyan

.gitignore

@@ -86,3 +86,10 @@ db-data
 # Local History
 .history
 .swc/
+
+# VuePress default temp directory
+.vuepress/.temp
+# VuePress default cache directory
+.vuepress/.cache
+# VuePress default build output directory
+.vuepress/dist