feat(web): add workspace sharing management i18n and update share modal

- Add new i18n keys for share management UI (shareSpace, shareSpaceTitle, shareSpaceNote) in both English and Chinese translations
- Update ShareModal title to use new 'shareSpace' i18n key for better UX clarity
- Update ShareModal description and note text to use new i18n keys (shareSpaceTitle, shareSpaceNote)
- Fix parser_config field name from 'third_party_platform' to '_third_party_platform' in CreateModal for proper form binding
- Improve share modal messaging to better communicate workspace sharing status and access control

web/src/i18n/en.ts

@@ -766,6 +766,9 @@ export const en = {
       toWorkspace: 'Authorization to workspace',
       shareTitle:'Please select the workspace you want to share',
       shareNote:'Note: Sharing is not possible when workspace app is closed',
+      shareSpace:'Manage Sharing',
+      shareSpaceTitle:'Shared with the following workspaces',
+      shareSpaceNote: 'Note： sharing is turned off, others will no longer have access.',
       authorizedPerson:'Authorized person',
       chunkList:'Chunk List',
       delimiter:'Text paragraph delimiter',