feat!: switch from Vuepress to Vitepress

.editorconfig

@@ -0,0 +1,10 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+
+[*.{js,ts,json,mts,css}]
+indent_style = space
+indent_size = 2