Update version to 0.1.2 and improve SVG handling in offset functions

Author: radevgit

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "offroad"
-version = "0.1.1"
+version = "0.1.2"
 description = "2D offsetting for arc polylines/polygons."
 rust-version = "1.88"
 edition = "2024"
@@ -15,15 +15,14 @@ readme = "README.md"
 
 
 [dependencies]
-togo = "0.4.0"
+togo = "0.4.1"
 robust = "1.2.0"
 
 [lib]
 crate-type = ["lib"]
 
 [dev-dependencies]
 rand = "0.9.2"
-divan = "0.1.21"
 
 [profile.release]
 lto = true

Cargo.toml

@@ -9,7 +9,7 @@ To use the Offroad library in your project, add the following to your `Cargo.tom
 
 ```toml
 [dependencies]
-offroad = "0.1.1"
+offroad = "0.1.2"
 ```
 
 ## 2D offsetting for arc polylines/polygons
@@ -48,7 +48,7 @@ fn main() {
         println!("Arcline {}: {} vertices", i, arcline.len());
     }
 
-    if let Some(svg) = cfg.svg.as_deref_mut() {
+    if let Some(svg) = cfg.svg.as_mut() {
         // Write svg to file
         svg.write_stroke_width(0.1);
     }