Stabilize the sdf-fonts feature

Enable the SDF feature by default in our compiler binaries

(Still disabled by default for other users because it takes up compile
time for something they probably don't need)

api/rs/build/lib.rs

@@ -189,6 +189,24 @@ impl CompilerConfiguration {
         config.translation_path_bundle = Some(path.into());
         Self { config }
     }
+
+    /// Configures the compiler to use Signed Distance Field (SDF) encoding for fonts.
+    ///
+    /// This flag only takes effect when `embed_resources` is set to [`EmbedResourcesKind::EmbedForSoftwareRenderer`],
+    /// and requires the `sdf-fonts` cargo feature to be enabled.
+    ///
+    /// [SDF](https://en.wikipedia.org/wiki/Signed_distance_function) reduces the binary size by
+    /// using an alternative representation for fonts, trading off some rendering quality
+    /// for a smaller binary footprint.
+    /// Rendering is slower and may result in slightly inferior visual output.
+    /// Use this on systems with limited flash memory.
+    #[cfg(feature = "sdf-fonts")]
+    #[must_use]
+    pub fn with_sdf_fonts(self, enable: bool) -> Self {
+        let mut config = self.config;
+        config.use_sdf_fonts = enable;
+        Self { config }
+    }
 }
 
 /// Error returned by the `compile` function