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.

language.php

@@ -45,7 +45,6 @@ if (isset($_GET['success_msg'])) {
     <?php endif; ?>
     <div class="tabs">
         <a href="#" class="active">US</a>
-        <a href="#" class="active">NL</a>
     </div>
     <div class="content-block">
         <div class="form responsive-width-100">
@@ -53,7 +52,10 @@ if (isset($_GET['success_msg'])) {
                 <label for="language_US"></label>
                <textarea name="language_US" id="language_US" style="min-height: 100vh;"><?=$contents?></textarea>
             </div>
-            <div class="tab-content active">
+    <div class="tabs">
+        <a href="#" class="">NL</a>
+    </div>
+            <div class="tab-content">
                 <label for="language_NL"></label>
                <textarea name="language_NL" id="language_NL" style="min-height: 100vh;"><?=$contents2?></textarea>
             </div>