Apply suggestions from code review

Co-authored-by: MarkSackerberg <93528482+MarkSackerberg@users.noreply.github.com>

src/pages/legacy-documentation/developer-tools/beet.md

@@ -1,6 +1,6 @@
 ---
 title: Beet
-metaTitle: Developer Tools | Beet
+metaTitle: Beet | Developer Tools
 description: Strict borsh compatible de/serializer and related extensions
 ---
 

src/pages/umi/getting-started/js.md

@@ -1,6 +1,6 @@
 ---
 title: Getting Started using JavaScript
-metaTitle: JavaScript SDK  | Umi
+metaTitle: JavaScript SDK | Umi
 description: Get started with essential programs using JavaScript
 ---
 

src/pages/umi/http-requests.md

@@ -1,6 +1,6 @@
 ---
 title: Sending Http requests
-metaTitle: Sending Http requests | Umi
+metaTitle: Sending HTTP requests | Umi
 description: Sending Http requests using Metaplex Umi
 ---
 Umi provides a simple `HttpInterface` that can be used to send HTTP requests. This allows any Umi plugin or third-party library to rely on whichever Http client the end-user chooses to use instead of ending up with multiple Http clients in the same project.