Fix SEO issues in titles and add RealtimeKit as product (#24662)

Author: renandincer

src/content/products/realtime-turn.yaml

@@ -1,4 +1,4 @@
-name: Realtime TURN Service
+name: TURN Service
 
 product:
   title: TURN Service
@@ -7,4 +7,6 @@ product:
   url: /realtime/turn/
 
 meta:
+  title: Cloudflare TURN service docs
   description: Ensure connectivity with a relay point for traffic between WebRTC clients
+  author: "@cloudflare"

src/content/products/realtime.yaml

@@ -1,12 +1,12 @@
-name: RealtimeKit
+name: Realtime
 
 product:
   title: Realtime
-  url: /realtime/realtimekit/
+  url: /realtime/
   group: Developer platform
   additional_groups: [Media]
 
 meta:
-  title: Cloudflare RealtimeKit docs
-  description: SDKs and APIs to build real-time applications with lowest latency at any scale
+  title: Cloudflare Realtime docs
+  description: RealtimeKit, SFU and TURN
   author: "@cloudflare"

src/content/products/realtimekit.yaml

@@ -0,0 +1,12 @@
+name: RealtimeKit
+
+product:
+  title: RealtimeKit
+  url: /realtime/realtimekit/
+  group: Developer platform
+  additional_groups: [Media]
+
+meta:
+  title: Cloudflare RealtimeKit docs
+  description: SDKs and APIs to build real-time applications with lowest latency at any scale
+  author: "@cloudflare"