[Docs] Update publicBaseUrl and rewriteBasePath settings (elastic#195465

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fix elastic#114562

![Screenshot 2024-10-08 at 09 04
20](https://github.com/user-attachments/assets/f43d592d-cc49-4f41-9bee-2a85f9c08292)

![Screenshot 2024-10-08 at 09 04
49](https://github.com/user-attachments/assets/39184960-d5ec-4485-944b-6ef4295d7101)

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Co-authored-by: Lisa Cawley <[email protected]>

docs/setup/settings.asciidoc

@@ -383,7 +383,7 @@ deprecation warning at startup. This setting cannot end in a slash (`/`).
 [[server-publicBaseUrl]] `server.publicBaseUrl`::
 The publicly available URL that end-users access Kibana at. Must include the protocol, hostname, port
 (if different than the defaults for `http` and `https`, 80 and 443 respectively), and the
-<<server-basePath, `server.basePath`>> (if configured). This setting cannot end in a slash (`/`).
+<<server-basePath,`server.basePath`>> (when that setting is configured explicitly). This setting cannot end in a slash (`/`).
 
 [[server-compression]] `server.compression.enabled`::
 Set to `false` to disable HTTP compression for all responses. *Default: `true`*
@@ -487,11 +487,8 @@ Sets whether or not the `X-Opaque-Id` header should be trusted from any IP addre
 A list of IPv4 and IPv6 address which the `X-Opaque-Id` header should be trusted from. Normally this would be set to the IP addresses of the load balancers or reverse-proxy that end users use to access Kibana. If any are set, <<server-requestId-allowFromAnyIp, `server.requestId.allowFromAnyIp`>> must also be set to `false.`
 
 [[server-rewriteBasePath]] `server.rewriteBasePath`::
-Specifies whether {kib} should
-rewrite requests that are prefixed with <<server-basePath, `server.basePath`>> or require that they
-are rewritten by your reverse proxy. In {kib} 6.3 and earlier, the default is
-`false`. In {kib} 7.x, the setting is deprecated. In {kib} 8.0 and later, the
-default is `true`. *Default: `deprecated`*
+Specifies whether {kib} should rewrite requests that are prefixed with <<server-basePath,`server.basePath`>> or require that they
+are rewritten by your reverse proxy. *Default: `false`*
 
 [[server-socketTimeout]] `server.socketTimeout`::
 The number of milliseconds to wait before closing an