standardise buttons: .btn base class (border-radius 10px, padding var(--space-xs))

app/templates/public/search.php

@@ -41,7 +41,7 @@
         </select>
     </label>
 
-    <button type="submit" class="search-apply-btn">Filtrer</button>
+    <button type="submit" class="btn btn--primary search-apply-btn">Filtrer</button>
     <a href="/search?query=<?= urlencode($_GET['query'] ?? '') ?>" class="search-reset-link">Réinitialiser</a>
 </form>
 

app/templates/public/tfe.php

@@ -303,7 +303,7 @@
                                       placeholder="Décrivez brièvement votre motivation (recherche, collaboration, etc.)"></textarea>
                         </div>
 
-                        <button type="submit" class="tfe-btn-request-access">
+                        <button type="submit" class="btn btn--primary tfe-btn-request-access">
                             Demander l'accès
                         </button>