style(gui): format and mark live compare toggle checkable

Author: visorcraft

apps/linsync-gui/qml/Main.qml

@@ -4627,6 +4627,7 @@ Kirigami.ApplicationWindow {
                         icon.name: root.liveCompareEnabled ? "media-playback-pause" : "media-playback-start"
                         icon.color: root.activeText
                         visible: root.compareMode === "Text"
+                        checkable: true
                         checked: root.liveCompareEnabled
                         Controls.ToolTip.text: root.liveCompareEnabled
                             ? qsTr("Live raw compare is on")

apps/linsync-gui/src/bridge.rs

@@ -1669,7 +1669,12 @@ pub(crate) fn raw_compare_preview_bridge_response(
         "mode": "Text",
     });
 
-    http_response(200, "OK", "application/json", linsync::json_with_schema(body).into_bytes())
+    http_response(
+        200,
+        "OK",
+        "application/json",
+        linsync::json_with_schema(body).into_bytes(),
+    )
 }
 
 pub(crate) fn copy_bridge_response(query: &str, state: &Arc<Mutex<GuiBridgeState>>) -> Vec<u8> {

apps/linsync-gui/src/tests.rs

@@ -4776,17 +4776,22 @@ fn raw_compare_preview_does_not_mutate_session() {
     assert!(resp.contains("HTTP/1.1 200"));
     let body = json_response_body(&resp);
     assert!(body["difference_count"].as_u64().unwrap() > 0);
-    assert!(body.get("session").is_none(), "preview must not include session state");
+    assert!(
+        body.get("session").is_none(),
+        "preview must not include session state"
+    );
 
     // And the bridge state must have no tabs.
-    let session_resp = String::from_utf8(bridge_response(
-        "GET /session HTTP/1.1\r\n",
-        &paths,
-        &state,
-    ))
-    .expect("utf-8 response");
+    let session_resp =
+        String::from_utf8(bridge_response("GET /session HTTP/1.1\r\n", &paths, &state))
+            .expect("utf-8 response");
     let session_body = json_response_body(&session_resp);
-    assert!(session_body["session"]["tabs"].as_array().unwrap().is_empty());
+    assert!(
+        session_body["session"]["tabs"]
+            .as_array()
+            .unwrap()
+            .is_empty()
+    );
 }
 
 #[test]