Meilleure cohérence des couleurs de champs (#2027)

app/assets/stylesheets/admin/design-system/forms.sass

+select.form-select,
+input.form-select[type=date],
 input.form-control[type=text],
 input.form-control[type=email],
 input.form-control[type=tel],
 input.form-control[type=password],
 input.form-control[type=url],
+input.form-control[type=file],
+input.form-check-input[type=checkbox],
 textarea.form-control
-    background: $color-white
+    background-color: $color-white
     font-family: $font-family-serif
     font-variant-ligatures: common-ligatures no-discretionary-ligatures no-historical-ligatures
 
@@ -12,6 +16,8 @@ textarea.form-control
 .form-control.is-valid,
 .form-select:valid,
 .form-select.is-valid
+    background-color: $color-white
+    background-image: none
     border-color: $color-valid
 .form-label
     color: $color-text-alt
\ No newline at end of file