feat: Reply suggestion and summary generation using OpenAI (#7029)

Add `reply_suggestions` and `summary_generation` options for OpenAI integration

Fixes: https://linear.app/chatwoot/issue/CW-1595/frontend-for-generating-conversation-summary

Co-authored-by: Nithin David Thomas <1277421+nithindavid@users.noreply.github.com>
Co-authored-by: Sojan Jose <sojan@pepalo.com>

app/javascript/shared/components/Spinner.vue

@@ -1,5 +1,5 @@
 <template>
-  <span class="spinner" :class="size" />
+  <span class="spinner" :class="`${size} ${colorScheme}`" />
 </template>
 <script>
 export default {
@@ -8,6 +8,10 @@ export default {
       type: String,
       default: 'small',
     },
+    colorScheme: {
+      type: String,
+      default: '',
+    },
   },
 };
 </script>
@@ -32,8 +36,8 @@ export default {
     margin-top: -$space-one;
     margin-left: -$space-one;
     border-radius: 50%;
-    border: 2px solid rgba(255, 255, 255, 0.7);
-    border-top-color: rgba(255, 255, 255, 0.2);
+    border: 2px solid rgba(255, 255, 255, 0.8);
+    border-top-color: rgba(255, 255, 255, 0.3);
     animation: spinner 0.9s linear infinite;
   }
 }
@@ -84,5 +88,10 @@ export default {
       margin-top: -$space-small + $space-micro;
     }
   }
+
+  &.dark::before {
+    border-color: rgba(0, 0, 0, 0.7);
+    border-top-color: rgba(0, 0, 0, 0.2);
+  }
 }
 </style>