add progress bar component and styling

src/components/common/ProgressBar.tsx

@@ -0,0 +1,22 @@
+interface ProgressBarProps {
+  progress: number
+}
+
+/**
+ * Simple progress bar component
+ */
+const ProgressBar = ({ progress }: ProgressBarProps) => {
+  return (
+    <div className="progress-container">
+      <div className="progress-bar">
+        <div 
+          className="progress-fill" 
+          style={{ width: `${Math.min(progress, 100)}%` }}
+        />
+      </div>
+      <span className="progress-text">{Math.round(progress)}%</span>
+    </div>
+  )
+}
+
+export default ProgressBar

src/styles/components/common/_index.scss

@@ -1,2 +1,2 @@
 @forward './loading';
-@forward './updater';
+@forward './progress_bar';

src/styles/components/common/_progress_bar.scss

@@ -0,0 +1,39 @@
+@use '../../themes/index' as *;
+@use '../../abstracts/index' as *;
+
+/* 
+  Progress bar component styles
+*/
+
+.progress-container {
+  width: 100%;
+  max-width: 400px;
+  margin: 1.5rem auto;
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+  align-items: center;
+}
+
+.progress-bar {
+  width: 100%;
+  height: 8px;
+  background: var(--border-dark);
+  border-radius: 4px;
+  overflow: hidden;
+  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
+}
+
+.progress-fill {
+  height: 100%;
+  background: var(--primary-color);
+  transition: width 0.3s ease;
+  border-radius: 4px;
+  position: relative;
+}
+
+.progress-text {
+  font-size: 0.9rem;
+  color: var(--text-secondary);
+  font-weight: var(--medium);
+}