Add software tool functionality with device connection and upgrade options

- Implemented the software tool page with user interface for connecting devices.
- Added functionality to display connection status and software upgrade options.
- Included a help modal with step-by-step instructions for users.
- Integrated error handling and user permission checks.
- Enhanced user experience with dynamic content updates and visual feedback.

firmwaretool.php

@@ -26,8 +26,8 @@ $view = '
             <h2>'.$firmwaretool_h2 .'</h2>
             <p>'.$firmwaretool_p.'</p>
         </div>
-    </div>
-</div>';
+    </div>';
+
 
 if (isset($_GET['equipmentID'])){$returnpage = 'equipment&equipmentID='.$_GET['equipmentID']; } else {$returnpage = 'dashboard';}
 
@@ -35,12 +35,15 @@ if (isset($_GET['equipmentID'])){$returnpage = 'equipment&equipmentID='.$_GET['e
 //SHOW BACK BUTTON ONLY FOR PORTAL USERS
 if (isAllowed('dashboard',$_SESSION['profile'],$_SESSION['permission'],'R') != 0){
   $view .= '
-      <div class="content-header responsive-flex-column pad-top-5">
-          <a href="index.php?page='.$returnpage.'" class="btn">←</a>
+      <div class="title-actions">
+          <a href="index.php?page='.$returnpage.'" class="btn alt mar-right-2">←</a>
       </div>
   ';
 }
 
+$view .= ' 
+          </div>';
+
 $view .= '<div class="content-block">
     <div class="block-header">
         <i class="fa-solid fa-bars fa-sm"></i>