fix(linux): focus browser on external links

Cargo.lock

@@ -17,6 +17,7 @@ name = "OpenCADStudio"
 version = "0.9.0"
 dependencies = [
  "acadrust",
+ "ashpd",
  "bincode",
  "bytemuck",
  "cavalier_contours",
@@ -423,6 +424,23 @@ dependencies = [
  "libloading",
 ]
 
+[[package]]
+name = "ashpd"
+version = "0.13.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb8421aaa9644a5faf26735f258b669b15f063313ef8f8e2bdb28912a1a6f111"
+dependencies = [
+ "enumflags2",
+ "futures-channel",
+ "futures-util",
+ "getrandom 0.4.3",
+ "serde",
+ "wayland-backend",
+ "wayland-client",
+ "wayland-protocols",
+ "zbus",
+]
+
 [[package]]
 name = "async-broadcast"
 version = "0.7.2"