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.

servicereports.php

@@ -16,7 +16,7 @@ $prev_page = ((isset($_SESSION['prev_origin_equipment'])) ? $_SESSION['prev_orig
 $page = $_SESSION['origin'] = 'servicereports';
 
 //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
 if (isAllowed($page,$_SESSION['profile'],$_SESSION['permission'],'R') === 0){