chore: add i18n namespace to various components in the workflow for consistency

web/app/components/base/chat/chat/answer/human-input-content/index.tsx

@@ -32,7 +32,8 @@ const HumanInputContent = ({
             {showEmailTip && isEmailDebugMode && (
               <div className="system-xs-regular text-text-secondary">
                 <Trans
-                  i18nKey="workflow.common.humanInputEmailTipInDebugMode"
+                  i18nKey="common.humanInputEmailTipInDebugMode"
+                  ns="workflow"
                   components={{ email: <span className="system-xs-semibold"></span> }}
                   values={{ email }}
                 />

web/app/components/base/prompt-editor/plugins/hitl-input-block/pre-populate.tsx

@@ -37,6 +37,7 @@ const Placeholder = ({
       <div className="flex flex-wrap items-center leading-5">
         <Trans
           i18nKey={`${i18nPrefix}.prePopulateFieldPlaceholder`}
+          ns="workflow"
           components={{
             staticContent: <TagLabel type="edit" className="mx-1" onClick={() => onTypeClick(false)}>{t(`${i18nPrefix}.staticContent`, { ns: 'workflow' })}</TagLabel>,
             variable: (