refactor: normalize files

src/main/resources/templates/convert/pdf-to-word.html

@@ -14,9 +14,9 @@
                         <h2 th:text="#{PDFToWord.header}"></h2>
                         <form method="post" enctype="multipart/form-data" th:action="@{api/v1/convert/pdf/word}">
                             <div th:replace="~{fragments/common :: fileSelector(name='fileInput', multiple=false, accept='application/pdf')}"></div>
-                            
+
                             <div class="mb-3">
-                                <label th:text="#{PDFToWord.selectText.1}"></label> 
+                                <label th:text="#{PDFToWord.selectText.1}"></label>
                                 <select class="form-control" name="outputFormat">
                                     <option value="doc">Doc</option>
                                     <option value="docx">DocX</option>