dev: define formatter and debus settings

.vscode/settings.json

+{
+  "editor.formatOnSave": true,
+  "editor.rulers": [100],
+  "[typescript]": {
+    "editor.defaultFormatter": "esbenp.prettier-vscode"
+  },
+  "[json]": {
+    "editor.defaultFormatter": "esbenp.prettier-vscode"
+  },
+  "[javascript]": {
+    "editor.defaultFormatter": "esbenp.prettier-vscode"
+  },
+  "[yaml]": {
+    "editor.defaultFormatter": "esbenp.prettier-vscode"
+  },
+  "lldb.dbgconfig": {
+    "rustc_path": "${env:HOME}/.rustup/toolchains/nightly-2021-01-13-x86_64-unknown-linux-gnu/lib/rustlib/src/rust",
+    "port_p2p": 19931,
+    "port_rpc": 19932,
+    "port_ws": 19933
+  }
+}