feat&fix: update paths in configuration, enhance error handling, and improve UI elements

monitor/templates/index.html

@@ -4,6 +4,9 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>OSWorld Monitor</title>
+    <link rel="icon" href="/static/favicon.png" type="image/x-icon">
+    <link rel="shortcut icon" href="/static/favicon.png" type="image/x-icon">
+    <link rel="apple-touch-icon" href="/static/favicon.png">
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css">
     <link rel="stylesheet" href="/static/style.css">
     <link rel="stylesheet" href="/static/index.css">
@@ -12,11 +15,6 @@
     <div class="main-container">
         <h1>OSWorld Monitor <span class="system-status online">System Online</span></h1>
         <div class="dashboard-stats">
-            <div class="stat-card">
-                <i class="fas fa-tasks"></i>
-                <span id="total-tasks">Loading...</span>
-                <div class="stat-label">Total Tasks</div>
-            </div>
             <div class="stat-card">
                 <i class="fas fa-running"></i>
                 <span id="active-tasks">Loading...</span>
@@ -27,6 +25,16 @@
                 <span id="completed-tasks">Loading...</span>
                 <div class="stat-label">Completed</div>
             </div>
+            <div class="stat-card">
+                <i class="fas fa-exclamation-circle"></i>
+                <span id="error-tasks">Loading...</span>
+                <div class="stat-label">Error</div>
+            </div>
+            <div class="stat-card">
+                <i class="fas fa-tasks"></i>
+                <span id="total-tasks">Loading...</span>
+                <div class="stat-label">Total Tasks</div>
+            </div>
         </div>
         <div id="task-container">
             <div class="loading-spinner">