fix mobile modal

client_v3/src/components/Encryption/blocks/AddTlsCert/styles.module.pcss

@@ -10,8 +10,21 @@
 
 .footer {
     display: flex;
+    flex-wrap: wrap;
     gap: 16px;
-    justify-content: flex-end;
+    width: 100%;
+
+    & button {
+        width: 100%;
+    }
+
+    @media (min-width: 768px) {
+        flex-wrap: nowrap;
+
+        & button {
+            width: auto;
+        }
+    }
 }
 
 .hiddenFileInput {

client_v3/src/components/Encryption/blocks/TlsCertSection.tsx

@@ -70,7 +70,7 @@ export const TlsCertSection = () => {
                 <span class={s.certTitle}>{intl.getMessage('tls_certificate')}</span>
                 <button
                     type="button"
-                    class={theme.table.action}
+                    class={theme.form.action}
                     onClick={removeCert}
                     aria-label={intl.getMessage('encryption_certificates')}
                 >