Provide a diff view when performing page reverting

I submitted a pr fix #9506: close history panel after select a version by CNLHC · Pull Request #10530 · logseq/logseq ( to merge the version list and version detail view. The new modal is named (by myself) as version selector

I think it may be useful to add a diff view to that version selector so that the user can view the difference between the selected version and the current version.