Fix csrf (#2126)

* apply fix

* Fixes empty th:action

* Update build.gradle

* fix

* formatting

---------

Co-authored-by: Dimitrios Kaitantzidis <james_k23@hotmail.gr>

src/main/resources/templates/fragments/navbar.html

@@ -351,7 +351,7 @@
             </a>
             <div class="dropdown-menu dropdown-menu-tp" aria-labelledby="searchDropdown">
               <div class="dropdown-menu-wrapper px-xl-2 px-2">
-                <form class="d-flex p-2 search-form" id="searchForm">
+                <form th:action="@{''}" class="d-flex p-2 search-form" id="searchForm">
                   <input class="form-control search-input" type="search" placeholder="Search" aria-label="Search" id="navbarSearchInput">
                 </form>
                 <!-- Search Results -->