feat: support for drawing

src/render.rs

@@ -132,6 +132,10 @@ mod tests {
             captcha_answer: String::new(),
             captcha_exact: false,
             captcha_casesensitive: false,
+            enable_drawings: false,
+            label_drawing: "Draw (optional):".into(),
+            canvas_width: 400,
+            canvas_height: 200,
             template: None,
             separator: "---".into(),
             style: String::new(),
@@ -152,6 +156,7 @@ mod tests {
                 name: name.into(),
                 date: date.into(),
                 website: String::new(),
+                drawing: String::new(),
                 status: Status::Approved,
             },
             body: body.into(),