improved documentation and refactored naming to be more self-explanatory

packages/router/src/history/liveview.rs

@@ -77,17 +77,18 @@ where
                 self.routes.retain(|&lhs, _| lhs <= last_visited);
             }
         };
-        let state = match state {
-            Some(state) => {
-                self.current_index = state.index;
-                state
-            }
-            None => {
-                let index = depth - 1;
-                self.current_index = index;
-                State { index }
-            }
-        };
+        let state =
+            match state {
+                Some(state) => {
+                    self.current_index = state.index;
+                    state
+                }
+                None => {
+                    let index = depth - 1;
+                    self.current_index = index;
+                    State { index }
+                }
+            };
         self.routes.insert(state.index, route);
         state
     }