further bug fixes when using context path (#1475)

Co-authored-by: Anthony Stirling <77850077+Frooodle@users.noreply.github.com>

src/main/resources/templates/misc/compress-pdf.html

@@ -19,7 +19,7 @@
               <span class="material-symbols-rounded tool-header-icon advance">zoom_in_map</span>
               <span class="tool-header-text" th:text="#{compress.header}"></span>
             </div>
-            <form action="#" th:action="@{api/v1/misc/compress-pdf}" method="post" enctype="multipart/form-data">
+            <form action="#" th:action="@{'/api/v1/misc/compress-pdf'}" method="post" enctype="multipart/form-data">
               <div
                 th:replace="~{fragments/common :: fileSelector(name='fileInput', multiple=false, accept='application/pdf')}">
               </div>