perf: Optimize system font loading by replacing concat() with chain() (#189)

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

Cargo.toml

@@ -52,26 +52,26 @@ rustix = { version = "1.1.4", features = ["process"] }
 rust-i18n = "4.0.0"
 sys-locale = "0.3.2"
 
-rodio = { git = "https://github.com/RustAudio/rodio.git", rev = "c5f1e94290922fe4ee963ce6f85754ea6ba36243", default-features = false, features = [
+rodio = { git = "https://github.com/RustAudio/rodio.git", rev = "880aaba54b00aead53651ed1ccbdb672d1375a95", default-features = false, features = [
     "symphonia-all",
     "symphonia-libopus",
     "playback",
 ] }
 pipewire = "0.10.0"
 
-egui = { version = "0.35.0", default-features = false, features = [
+egui = { version = "0.36.0", default-features = false, features = [
     "default_fonts",
     "rayon",
 ] }
-eframe = { version = "0.35.0", default-features = false, features = [
+eframe = { version = "0.36.0", default-features = false, features = [
     "default_fonts",
     "glow",
     "x11",
     "wayland",
 ] }
-egui_extras = "0.35.0"
-egui_material_icons = "0.7.0"
-egui_dnd = "0.16.0"
+egui_extras = "0.36.0"
+egui_material_icons = "0.8.0"
+egui_dnd = "0.17.0"
 
 reqwest = { version = "0.13.4", default-features = false, features = ["native-tls"] }
 percent-encoding = "2.3.2"

pwsp-gui/src/gui/mod.rs

@@ -389,9 +389,13 @@ fn load_system_fonts(fonts: &mut FontDefinitions) -> Result<()> {
     let (_, ja_sans) = find_for_locale("ja", FontStyle::Sans);
     let (_, ar_sans) = find_for_locale("ar", FontStyle::Sans);
 
-    let system_fonts = [en_sans, en_serif, ja_sans, ar_sans].concat();
+    let system_fonts = en_sans
+        .into_iter()
+        .chain(en_serif)
+        .chain(ja_sans)
+        .chain(ar_sans);
 
-    for font in system_fonts.iter().rev() {
+    for font in system_fonts.rev() {
         let font_bytes = match &font.source {
             FoundFontSource::Path(path) => fs::read(path)?,
             FoundFontSource::Bytes(bytes) => bytes.to_vec(),