Add company logo to website header and sidebar elements

Add logo.png to the public folder and update dashboard.html and index.html to display the logo image instead of placeholder text. Adjust CSS for .logo-icon size and object-fit.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: aed2e46d-25bb-4b73-81a1-bb9e8437c261
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 101882bf-cab9-4370-8f02-9fc48a450400
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/3bdfff67-975a-46ad-9845-fbb6b4a4c4b5/aed2e46d-25bb-4b73-81a1-bb9e8437c261/Xy30ojl
Replit-Helium-Checkpoint-Created: true

aethex-bot/public/dashboard.html

@@ -88,15 +88,10 @@
     }
     
     .logo-icon {
-      width: 40px;
-      height: 40px;
-      background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
+      width: 44px;
+      height: 44px;
       border-radius: 10px;
-      display: flex;
-      align-items: center;
-      justify-content: center;
-      font-weight: 700;
-      font-size: 1.125rem;
+      object-fit: contain;
     }
     
     .logo-text {
@@ -1118,7 +1113,7 @@
   <div id="app" class="app hidden">
     <aside class="sidebar">
       <a href="/" class="logo">
-        <div class="logo-icon">A</div>
+        <img src="/logo.png" alt="AeThex" class="logo-icon">
         <span class="logo-text">AeThex</span>
       </a>
       

aethex-bot/public/index.html

@@ -88,15 +88,10 @@
     }
     
     .logo-icon {
-      width: 36px;
-      height: 36px;
-      background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
+      width: 40px;
+      height: 40px;
       border-radius: 8px;
-      display: flex;
-      align-items: center;
-      justify-content: center;
-      font-weight: 700;
-      font-size: 1rem;
+      object-fit: contain;
     }
     
     .logo-text {
@@ -528,7 +523,7 @@
   <header>
     <div class="container header-content">
       <a href="/" class="logo">
-        <div class="logo-icon">A</div>
+        <img src="/logo.png" alt="AeThex" class="logo-icon">
         <span class="logo-text">AeThex Bot</span>
       </a>