Basic doc changes (#2433)

docs/adding-servers/banner.mdx

@@ -12,7 +12,7 @@ Servers may also provide a server banner. If it is required for your server, ple
 -   If a static banner is provided, it should be uploaded as a `.png` version named `banner.png`.
 -   If an animated banner is provided, it should be uploaded as a `.gif` version named `banner.gif`.
 -   The banner should represent the content of the server and prominently feature the server's name and/or IP.
--   All banners must have a minimum width of `340` pixels and a height of `45` pixels, resulting in a 68:9 aspect ratio.
+-   All banners must have a minimum width of `351` pixels and a height of `45` pixels, resulting in a `35:5` aspect ratio.
 -   Animated (GIF) banners must not exceed a total duration of 15 seconds.
 
 Please ensure that your server banner meets these requirements. As with other assets, the server banner will be reviewed before being accepted.

docs/adding-servers/overview.mdx

@@ -5,7 +5,7 @@ import { Callout } from "nextra-theme-docs";
 You can add your server to Server Mappings by [creating a pull request](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request-from-a-fork) to the [ServerMappings repository](https://github.com/LunarClient/ServerMappings) following the guidelines detailed here.
 
 <Callout type="warning" emoji="⚠️">
-    We ask that this repository is only used to store mappings for *public* Minecraft servers. Some server IPs, such as private SMPs, tournament servers, etc. should not be listed in this repository, out of respect for privacy.
+    We ask that this repository is only used to store mappings for *public* Minecraft servers. Server IPs, such as private SMPs, tournament servers, etc. should not be listed in this repository, out of respect for privacy. Do not submit servers while they're whitelisted, or they won't be approved.
 
     **Lunar Client also reserves the right to omit any servers that do not comply with our [terms of service](https://www.lunarclient.com/terms).**