Refactor UI elements for consistency and clarity

- Updated action buttons across multiple files to use icons (e.g., "Save" to "💾+", "Delete" to "X").
- Replaced "Cancel" button text with a left arrow (←) for a more intuitive navigation experience.
- Removed unnecessary action columns from tables to streamline the interface.
- Enhanced table rows to be clickable for better user interaction, redirecting to relevant management pages.
- Adjusted font sizes and styles in CSS for improved readability and aesthetics.
- Standardized back button functionality to use a left arrow across various pages.

servicereport.php

@@ -15,7 +15,7 @@ $prev_page = (isset($_SESSION['origin']) && $_SESSION['origin'] == 'equipments')
 $page = 'servicereport';
 
 //create backbutton to prev_origin
-$back_btn_orgin =  ($prev_page != '')? '<a href="'.$prev_page.'" class="btn alt mar-right-2">'.$button_back.'</a>':'';
+$back_btn_orgin =  ($prev_page != '')? '<a href="'.$prev_page.'" class="btn alt mar-right-2">←</a>':'';
 
 
 //Check if allowed
@@ -44,6 +44,7 @@ $view = '
         </div>
     </div>
     '.$back_btn_orgin.'
+    <a href="index.php?page=render_service_report&historyID='.$_GET['historyID'].'" class="btn"><i class="fa-solid fa-file-pdf"></i></a>
 </div>';
 
 //Get all related service events
@@ -59,6 +60,7 @@ if (empty($history)){
 $view .= '<div class="content-block">
     <div class="block-header">
         <i class="fa-solid fa-bars fa-sm"></i>'.$servicereport_details.' - '.$_GET['historyID'].'
+        <a href="index.php?page=render_service_report&historyID='.$_GET['historyID'].'" class="btn">&#xf1c1;</a>
     </div>
     '.$service_events.'
 </div>