Enhanced sharing capabilities

[cndingwei]

The "Share" function currently used puts "Shared by me" and "Shared by others" together. It is recommended to add the function of viewing "Shared by me" and "Shared by others". "Shared by others" should be classified by "sharer". If there are users with the same "name" in the system, it is difficult to distinguish which one it is. When setting up the display of "user name", you can set "display user account at the same time". In particular, after connecting to LDAP, the "display name" in LDAP is displayed, which cannot be modified in Nextcloud.