feat: placeholder component in hoppscotch-ui (#3123)

Co-authored-by: Andrew Bastin <andrewbastin.k@gmail.com>

packages/hoppscotch-common/src/components/http/BodyParameters.vue

@@ -152,17 +152,12 @@
       </template>
     </draggable>
 
-    <div
+    <HoppSmartPlaceholder
       v-if="workingParams.length === 0"
-      class="flex flex-col items-center justify-center p-4 text-secondaryLight"
+      :src="`/images/states/${colorMode.value}/upload_single_file.svg`"
+      :alt="`${t('empty.body')}`"
+      :text="t('empty.body')"
     >
-      <img
-        :src="`/images/states/${colorMode.value}/upload_single_file.svg`"
-        loading="lazy"
-        class="inline-flex flex-col object-contain object-center w-16 h-16 my-4"
-        :alt="`${t('empty.body')}`"
-      />
-      <span class="pb-4 text-center">{{ t("empty.body") }}</span>
       <HoppButtonSecondary
         :label="`${t('add.new')}`"
         filled
@@ -170,7 +165,7 @@
         class="mb-4"
         @click="addBodyParam"
       />
-    </div>
+    </HoppSmartPlaceholder>
   </div>
 </template>