chore: retrieval docs links and enchance help doc translation (#1570)

web/app/components/app/configuration/dataset-config/settings-modal/index.tsx

             <div>
               <div>{t('datasetSettings.form.retrievalSetting.title')}</div>
               <div className='leading-[18px] text-xs font-normal text-gray-500'>
-                <a target='_blank' href='https://docs.dify.ai/v/zh-hans/advanced/retrieval-augment' className='text-[#155eef]'>{t('datasetSettings.form.retrievalSetting.learnMore')}</a>
+                <a target='_blank' href='https://docs.dify.ai/advanced/retrieval-augment' className='text-[#155eef]'>{t('datasetSettings.form.retrievalSetting.learnMore')}</a>
                 {t('datasetSettings.form.retrievalSetting.description')}
               </div>
             </div>

web/app/components/datasets/create/step-two/index.tsx

                   <div className={s.label}>
                     {t('datasetSettings.form.retrievalSetting.title')}
                     <div className='leading-[18px] text-xs font-normal text-gray-500'>
-                      <a target='_blank' href='https://docs.dify.ai/v/zh-hans/advanced/retrieval-augment' className='text-[#155eef]'>{t('datasetSettings.form.retrievalSetting.learnMore')}</a>
+                      <a target='_blank' href='https://docs.dify.ai/advanced/retrieval-augment' className='text-[#155eef]'>{t('datasetSettings.form.retrievalSetting.learnMore')}</a>
                       {t('datasetSettings.form.retrievalSetting.longDescription')}
                     </div>
                   </div>

web/app/components/datasets/hit-testing/modify-retrieval-modal.tsx

         <div className='text-base font-semibold text-gray-900'>
           <div>{t('datasetSettings.form.retrievalSetting.title')}</div>
           <div className='leading-[18px] text-xs font-normal text-gray-500'>
-            <a target='_blank' href='https://docs.dify.ai/v/zh-hans/advanced/retrieval-augment' className='text-[#155eef]'>{t('datasetSettings.form.retrievalSetting.learnMore')}</a>
+            <a target='_blank' href='https://docs.dify.ai/advanced/retrieval-augment' className='text-[#155eef]'>{t('datasetSettings.form.retrievalSetting.learnMore')}</a>
             {t('datasetSettings.form.retrievalSetting.description')}
           </div>
         </div>

web/app/components/datasets/settings/form/index.tsx

           <div>
             <div>{t('datasetSettings.form.retrievalSetting.title')}</div>
             <div className='leading-[18px] text-xs font-normal text-gray-500'>
-              <a target='_blank' href='https://docs.dify.ai/v/zh-hans/advanced/retrieval-augment' className='text-[#155eef]'>{t('datasetSettings.form.retrievalSetting.learnMore')}</a>
+              <a target='_blank' href='https://docs.dify.ai/advanced/retrieval-augment' className='text-[#155eef]'>{t('datasetSettings.form.retrievalSetting.learnMore')}</a>
               {t('datasetSettings.form.retrievalSetting.description')}
             </div>
           </div>

web/i18n/lang/common.en.ts

     settings: 'Settings',
     workspace: 'Workspace',
     createWorkspace: 'Create Workspace',
-    helpCenter: 'Help Document',
+    helpCenter: 'Help',
     about: 'About',
     logout: 'Log out',
   },