standardize the submit button

src/main/resources/templates/login.html

@@ -93,7 +93,7 @@
             <input type="checkbox" name="remember-me" id="remember-me">
             <label for="remember-me" th:text="#{login.rememberme}"></label>
           </div>
-          <button class="w-100 btn btn-lg btn-primary" type="submit" th:text="#{login.signin}">Sign in</button>
+          <button type="submit" class="w-100 btn btn-lg btn-primary" th:text="#{login.signin}">Sign in</button>
         </form>
         <div class="mt-3"> <!-- Added a margin-top for spacing -->
           <div class="dropdown text-center">