fix: layout issue (progress bar not horizontally centralized) in qt6.4.5

src/loading_indicator.cpp

@@ -1,14 +1,16 @@
 /*
  * @Author: Uyanide pywang0608@foxmail.com
  * @Date: 2025-08-07 00:32:25
- * @LastEditTime: 2025-08-07 21:14:09
+ * @LastEditTime: 2026-01-15 05:23:55
  * @Description: LoadingIndicator implementation.
  */
 #include "loading_indicator.h"
 
-LoadingIndicator::LoadingIndicator(QWidget* parent) : QWidget(parent),
-                                                      ui(new Ui::LoadingIndicator) {
+LoadingIndicator::LoadingIndicator(int barMinimumWidth, QWidget* parent)
+    : QWidget(parent),
+      ui(new Ui::LoadingIndicator) {
     ui->setupUi(this);
+    ui->progressBar->setMinimumWidth(barMinimumWidth);
 }
 
 LoadingIndicator::~LoadingIndicator() {