fix(torn-api): fix request parameter encoding

torn-api/src/request/mod.rs

@@ -14,7 +14,13 @@ impl ApiRequest {
     pub fn url(&self) -> String {
         let mut url = format!("https://api.torn.com/v2{}?", self.path);
 
+        let mut first = true;
         for (name, value) in &self.parameters {
+            if first {
+                first = false;
+            } else {
+                url.push('&');
+            }
             url.push_str(&format!("{name}={value}"));
         }