``add configuration files for CrossNote, VSCode extensions, and documentation for system architecture and design requirements``

.vscode/extensions.json

@@ -1,12 +1,15 @@
 {
   "recommendations": [
-    "aflalo.dbml-formatter",
-    "bierner.markdown-mermaid",
     "christian-kohler.path-intellisense",
     "esbenp.prettier-vscode",
     "humao.rest-client",
+    //
     "matt-meyers.vscode-dbml",
+    "aflalo.dbml-formatter",
     "nicolas-liger.dbml-viewer",
-    "yzhang.markdown-all-in-one"
+    //
+    "bierner.markdown-mermaid",
+    "yzhang.markdown-all-in-one",
+    "shd101wyy.markdown-preview-enhanced"
   ]
 }

.vscode/settings.json

@@ -15,7 +15,9 @@
     "editor.defaultFormatter": "esbenp.prettier-vscode"
   },
   "workbench.iconTheme": "material-icon-theme",
-  "workbench.colorTheme": "Default Dark Modern",
+  "workbench.colorTheme": "Mermaid Dark",
   "editor.formatOnSave": true,
-  "git.ignoreLimitWarning": true
+  "git.ignoreLimitWarning": true,
+  //
+  "markdown.styles": ["https://use.fontawesome.com/releases/v5.7.1/css/all.css"]
 }