Improve VSCode extensions/settings

- Use more modern and more useful extensions
- Use the Ruby language server as not doing so is deprecated

.vscode/extensions.json

@@ -1,11 +1,13 @@
 {
   "recommendations": [
     "kaiwood.endwise",
-    "misogi.ruby-rubocop",
+    "lorankloeze.ruby-rubocop-revived",
     "rebornix.ruby",
-    "wingrunr21.vscode-ruby",
+    "sorbet.sorbet-vscode-extension",
+    "github.vscode-github-actions",
     "timonwong.shellcheck",
     "foxundermoon.shell-format",
+    "davidanson.vscode-markdownlint",
     "editorconfig.editorconfig"
   ]
 }

.vscode/settings.json

@@ -6,6 +6,7 @@
   "files.trimTrailingWhitespace": true,
   "files.insertFinalNewline": true,
   "files.trimFinalNewlines": true,
+  "ruby.useLanguageServer": true,
   "ruby.rubocop.executePath": "Library/Homebrew/shims/gems/",
   "shellcheck.customArgs": [
     "--shell=bash",