fix disabled fields for fast edition

src/components/Feature/Edit/FeatureExtraForm.vue

 <template>
   <div
     v-if="field && field.field_type === 'char'"
-    :class="{ disabled }"
+    :class="['field', { disabled }]"
   >
     <label
       v-if="displayLabels"
@@ -31,7 +31,7 @@
 
   <div
     v-else-if="field && field.field_type === 'list'"
-    :class="{ disabled }"
+    :class="['field', { disabled }]"
   >
     <label
       v-if="displayLabels"
@@ -61,7 +61,7 @@
 
   <div
     v-else-if="field && field.field_type === 'pre_recorded_list'"
-    :class="{ disabled }"
+    :class="['field', { disabled }]"
   >
     <label
       v-if="displayLabels"
@@ -124,7 +124,7 @@
 
   <div
     v-else-if="field && field.field_type === 'multi_choices_list'"
-    :class="{ disabled }"
+    :class="['field', { disabled }]"
   >
     <label
       v-if="displayLabels"
@@ -164,7 +164,7 @@
 
   <div
     v-else-if="field && field.field_type === 'integer'"
-    :class="{ disabled }"
+    :class="['field', { disabled }]"
   >
     <label
       v-if="displayLabels"
@@ -197,7 +197,7 @@
 
   <div
     v-else-if="field && field.field_type === 'boolean'"
-    :class="{ disabled }"
+    :class="['field', { disabled }]"
   >
     <div :class="['ui checkbox', { disabled }]">
       <input
@@ -215,7 +215,7 @@
 
   <div
     v-else-if="field && field.field_type === 'date'"
-    :class="{ disabled }"
+    :class="['field', { disabled }]"
   >
     <label
       v-if="displayLabels"
@@ -245,7 +245,7 @@
 
   <div
     v-else-if="field && field.field_type === 'decimal'"
-    :class="{ disabled }"
+    :class="['field', { disabled }]"
   >
     <label
       v-if="displayLabels"
@@ -278,7 +278,7 @@
 
   <div
     v-else-if="field && field.field_type === 'text'"
-    :class="{ disabled }"
+    :class="['field', { disabled }]"
   >
     <label
       v-if="displayLabels"