fix: align file upload submit action

patterns/file-upload.html

@@ -18,7 +18,7 @@
       </div>
       <p class="sg-body sg-file-upload__status" id="file-upload-status" aria-live="polite">Noch keine Dateien ausgewählt.</p>
       <ul class="sg-file-upload__files" aria-label="Ausgewählte Dateien"></ul>
-      <button class="sg-interaction-element sg-button sg-button--process sg-button--process-inactive" type="submit" disabled aria-disabled="true">Hochladen</button>
+      <button class="sg-interaction-element sg-button sg-button--process sg-button--process-inactive sg-file-upload__submit" type="submit" disabled aria-disabled="true">Hochladen</button>
     </form>
   </section>
   <script>

styles/47-patterns-file-upload.css

@@ -69,6 +69,10 @@
   flex: 0 0 auto;
 }
 
+.sg-file-upload__submit {
+  align-self: flex-end;
+}
+
 .sg-file-upload__error {
   color: var(--text-file-upload-error);
 }