HH-530: replace user-facing Chatwoot branding with GoChat (#117)

* fix(HH-530): replace user-facing Chatwoot branding

* fix(HH-530): close branding review blockers

* test(HH-530): cover update banner binding

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Co-authored-by: Rogee <rogee@ipao.vip>

frontend/app/javascript/dashboard/modules/widget-preview/components/Widget.vue

@@ -243,7 +243,7 @@ const handleToggleWidget = () => {
           :script="widgetScript"
           lang="html"
           class="!text-start"
-          :codepen-title="`${websiteName} - Chatwoot Widget Test`"
+          :codepen-title="`${websiteName} - GoChat Widget Test`"
           enable-code-pen
         />
       </div>