feat(组件): 添加线性进度条组件并替换圆形进度条

重构进度指示器，使用新的LinearProgress组件替换原有的CircularProgress
更新文件管理器中的进度指示器引用
修改首页加载动画为线性进度条样式

index.html

@@ -46,43 +46,39 @@
         transform: scale(0.8);
         animation: fadeIn 0.6s ease-out 0.3s forwards;
       }
-      #app-loader .spinner {
-        width: 28px;
-        height: 28px;
-        position: relative;
+      #app-loader .progress-container {
+        width: 200px;
+        height: 4px;
+        background-color: rgba(0, 0, 0, 0.1);
+        border-radius: 2px;
+        overflow: hidden;
         opacity: 0;
         transform: scale(0.8);
         animation: fadeIn 0.6s ease-out 0.3s forwards;
       }
-      #app-loader .spinner {
-        display: inline-block;
-        width: 40px;
-        height: 40px;
-      }
-      #app-loader .spinner svg {
-        display: block;
-      }
-      #app-loader .spinner .stroke {
-        stroke: var(--defaultThemeColor);
-        stroke-linecap: round;
-        animation: spinDash 1.4s ease-in-out infinite;
-      }
-      #app-loader .spinner .background {
-        stroke: rgba(0, 0, 0, 0.1)
+      #app-loader .progress-bar {
+        height: 100%;
+        background-color: var(--defaultThemeColor);
+        border-radius: 2px;
+        animation: linearProgress 1.5s infinite ease-in-out;
       }
 
-      @keyframes spinDash {
+      @keyframes linearProgress {
         0% {
-          stroke-dasharray: 1px, 200px;
-          stroke-dashoffset: 0;
+          transform: translateX(-100%);
+          width: 50%;
         }
         50% {
-          stroke-dasharray: 100px, 200px;
-          stroke-dashoffset: -15px;
+          transform: translateX(100%);
+          width: 50%;
+        }
+        51% {
+          transform: translateX(100%);
+          width: 50%;
         }
         100% {
-          stroke-dasharray: 1px, 200px;
-          stroke-dashoffset: -126px;
+          transform: translateX(-100%);
+          width: 50%;
         }
       }
       @keyframes fadeIn {
@@ -97,11 +93,8 @@
     <noscript>You need to enable JavaScript to run this app.</noscript>
     <div id="app-loader">
       <div class="logo"></div>
-      <div class="spinner">
-        <svg viewBox="22 22 44 44">
-          <circle class="background" cx="44" cy="44" r="20" fill="none" stroke-width="4"></circle>
-          <circle class="stroke" cx="44" cy="44" r="20" fill="none" stroke-width="4"></circle>
-        </svg>
+      <div class="progress-container">
+        <div class="progress-bar"></div>
       </div>
     </div>
     <script async type="module" src="/src/main.tsx"></script>