feat(js): Remove `Shutdown & Draining" page in favor of APIs page (#13231)

Author: mydea

docs/platforms/javascript/common/apis.mdx

@@ -86,8 +86,13 @@ Sentry.setTag("tag", "value");
     },
   ]}
 >
-  Flushes all pending events and disables the SDK. Note that this does not
-  remove any listeners the SDK may have set up.
+Flushes all pending events and disables the SDK. Note that this does not
+remove any listeners the SDK may have set up. After a call to `close`, the current client cannot be used anymore. It's
+important to only call `close` immediately before shutting down the application.
+
+Alternatively, the [`flush`](#flush) method drains the event queue while keeping the
+client enabled for continued use.
+
 </SdkApi>
 
 <SdkApi

docs/platforms/javascript/common/configuration/draining.mdx

@@ -498,6 +498,14 @@ const userDocsRedirects = [
     source: '/platforms/javascript/guides/:guide/configuration/environments/',
     destination: '/platforms/javascript/guides/:guide/configuration/options/#environment',
   },
+  {
+    source: '/platforms/javascript/configuration/draining/',
+    destination: '/platforms/javascript/apis/#flush',
+  },
+  {
+    source: '/platforms/javascript/guides/:guide/configuration/draining/',
+    destination: '/platforms/javascript/guides/:guide/apis/#flush',
+  },
   {
     source: '/platforms/:platform/context/',
     destination: '/platforms/:platform/enriching-events/context/',