Meta+WebContent+LibWeb: Add, link and initialize SDL3

Author: https://github.com/Lubrsi
Commit: https://github.com/LadybirdBrowser/ladybird/commit/50dcd8fc850
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5902
Reviewed-by: https://github.com/gmta
Reviewed-by: https://github.com/trflynn89

vcpkg.json

@@ -25,6 +25,11 @@
         "zstd"
       ]
     },
+    {
+      "name": "dbus",
+      "default-features": false,
+      "platform": "linux"
+    },
     {
       "name": "dirent",
       "platform": "windows"
@@ -151,6 +156,10 @@
       "name": "pthread",
       "platform": "windows"
     },
+    {
+      "name": "sdl3",
+      "default-features": false
+    },
     "simdutf",
     {
       "name": "skia",
@@ -201,6 +210,10 @@
       "name": "curl",
       "version": "8.15.0#1"
     },
+    {
+      "name": "dbus",
+      "version": "1.16.2#1"
+    },
     {
       "name": "dirent",
       "version": "1.25#0"
@@ -269,6 +282,10 @@
       "name": "qtmultimedia",
       "version": "6.8.3#0"
     },
+    {
+      "name": "sdl3",
+      "version": "3.2.20#0"
+    },
     {
       "name": "simdutf",
       "version": "7.4.0#0"