fix(display): Replace invalid commas with semicolons in angle calculations

- Fix syntax errors caused by Chinese commas in ternary operators.
- Ensure angle normalization works correctly during rotation.w

Author: JWWTSL

qt/src/Displayer.cc

@@ -434,7 +434,7 @@ void Displayer::setZoom(Zoom action, ViewportAnchor anchor) {
 
 void Displayer::setAngle(double angle) {
 	if (m_imageItem) {
-		angle = angle < 0.0 ? angle + 360.0 : angle >= 360.0 ? angle - 360.0 : angle,
+		angle = angle < 0.0 ? angle + 360.0 : angle >= 360.0 ? angle - 360.0 : angle;
 		Utils::setSpinBlocked(ui.spinBoxRotation, angle);
 		int sourcePage = m_pageMap[getCurrentPage()].second;
 		double delta = angle - m_currentSource->angle[sourcePage - 1];
@@ -444,7 +444,7 @@ void Displayer::setAngle(double angle) {
 			for (int page : m_pageMap.keys()) {
 				auto pair = m_pageMap[page];
 				double newangle = pair.first->angle[pair.second - 1] + delta;
-				newangle = newangle < 0.0 ? newangle + 360.0 : newangle >= 360.0 ? newangle - 360.0 : newangle,
+				newangle = newangle < 0.0 ? newangle + 360.0 : newangle >= 360.0 ? newangle - 360.0 : newangle;
 				pair.first->angle[pair.second - 1] = newangle;
 			}
 		}