allow to disable text signature via account prefs

app/javascript/submission_form/signature_step.vue

@@ -23,7 +23,7 @@
           </a>
         </span>
         <span
-          v-else
+          v-else-if="withTypedSignature"
           class="tooltip"
           :data-tip="t('type_text')"
         >
@@ -149,6 +149,11 @@ export default {
       required: true,
       default: false
     },
+    withTypedSignature: {
+      type: Boolean,
+      required: false,
+      default: true
+    },
     attachmentsIndex: {
       type: Object,
       required: false,