Update extensions.json

Author: benpaddlejones

.vscode/extensions.json

@@ -1,25 +1,22 @@
 {
   "recommendations": [
-    "McCarter.start-git-bash",
-    "yy0931.vscode-sqlite3-editor",
-    "medo64.render-crlf",
-    "ecmel.vscode-html-css",
-    "ms-python.python",
-    "esbenp.prettier-vscode",
-    "oderwat.indent-rainbow",
-    "ritwickdey.LiveServer",
-    "tomoki1207.pdf",
-    "ms-vscode-remote.remote-containers",
-    "ms-vscode-remote.remote-wsl",
-    "GitHub.codespaces",
-    "ms-python.debugpy",
-    "ms-python.vscode-pylance",
-    "ms-vscode-remote.remote-wsl",
-    "ms-azuretools.vscode-docker",
-    "yahyabatulu.vscode-markdown-alert",
-    "bierner.markdown-preview-github-styles",
-    "mechatroner.rainbow-csv",
-    "ms-python.pylint",
-    "donjayamanne.python-environment-manager"
+        "bierner.markdown-mermaid",
+        "bierner.markdown-preview-github-styles",
+        "ecmel.vscode-html-css",
+        "esbenp.prettier-vscode",
+        "GitHub.codespaces",
+        "mathematic.vscode-pdf",
+        "McCarter.start-git-bash",
+        "mechatroner.rainbow-csv",
+        "ms-python.black-formatter",
+        "ms-python.debugpy",
+        "ms-python.pylint",
+        "ms-python.python",
+        "ms-python.vscode-python-envs",
+        "oderwat.indent-rainbow",
+        "streetsidesoftware.code-spell-checker",
+        "tal7aouy.icons",
+        "saeris.markdown-github-alerts",
+        "yy0931.vscode-sqlite3-editor"
   ]
 }