Meta 3.13.1 (#2842)

* Update Discord.Net.targets

* Update docfx.json

* Update Discord.Net.nuspec

* Update CHANGELOG.md

* Update docs/docfx.json

Co-authored-by: Quin Lynch <49576606+quinchs@users.noreply.github.com>

---------

Co-authored-by: Quin Lynch <49576606+quinchs@users.noreply.github.com>

docs/docfx.json

@@ -58,7 +58,7 @@
     "overwrite": "_overwrites/**/**.md",
     "globalMetadata": {
       "_appTitle": "Discord.Net Documentation",
-      "_appFooter": "Discord.Net © 2015-2024 3.13.0 (the poggers update)",
+      "_appFooter": "Discord.Net © 2015-2024 3.13.1",
       "_enableSearch": true,
       "_appLogoPath": "marketing/logo/SVG/Logomark Purple.svg",
       "_appFaviconPath": "favicon.ico"