fix: null message on input help (#343)

* fix: null message on input help

* fix null message

Author: madassdev

client/components/forms/components/InputHelp.vue

@@ -1,7 +1,7 @@
 <template>
   <div class="flex mb-1 input-help">
     <small :class="theme.default.help" class="grow flex">
-      <slot name="help"><span class="field-help" v-html="help" /></slot>
+      <slot name="help"><span v-if="help" class="field-help" v-html="help" /></slot>
     </small>
     <slot name="after-help">
       <small class="flex-grow"  />