Document the Connect component API (#14931)

* Add new left-nav link to the new docs
* Describe how to use the new API to configure and run a component
* Document the new API endpoints in the API/SDK reference section
* Add the exact `pnpm` entry to `.tool-versions` in the docs directory
* Minor fixes in the docstring of the component configuration methods
* Update SDK changelog for the previous and this current changes
* Fix linter issues with the SDK changelog
* Remove Projects API section
* Fix title capitalizations

Author: jverce

docs-v2/.tool-versions

@@ -1 +1,2 @@
 nodejs 20.9.0
+pnpm 9.14.2

docs-v2/pages/connect/_meta.tsx

@@ -3,25 +3,28 @@ export default {
     "title": "Overview",
   },
   "use-cases": {
-    "title": "Use Cases",
+    "title": "Use cases",
   },
   "quickstart": {
     "title": "Quickstart",
   },
   "workflows": {
     "title": "Running workflows",
   },
+  "components": {
+    "title": "Running components",
+  },
   "api": {
-    "title": "API & SDK Reference",
+    "title": "API & SDK reference",
   },
   "tokens": {
-    "title": "Connect Tokens",
+    "title": "Connect tokens",
   },
   "environments": {
     "title": "Environments",
   },
   "oauth-clients": {
-    "title": "OAuth Clients",
+    "title": "OAuth clients",
   },
   "webhooks": {
     "title": "Webhooks",
@@ -33,7 +36,7 @@ export default {
     "title": "Troubleshooting",
   },
   "customize-your-app": {
-    "title": "Customize Your App",
+    "title": "Customize your app",
   },
   "migrating-from-project-keys-to-oauth": {
     "display": "hidden",