* [my libs] fixed the operation menu items for library items in mobile after
reactstrap was upgraded from v8 to v9
- after the upgrade for reacstrap, the operation menu items fail to work
* [shared dir view] fixed the operation menu items in mobile
* [new component] added a new component 'MobileItemMenu' for items' operation menu in mobile
* [user settings] linked devices: fixed the operation menus in mobile
* [library content view] fixed the operation menus in mobile
* [department/group repo list, shared with all] fixed the operation menus in mobile
* [shared with me] fixed the operation menus in mobile
* [Favorites] fixed the operation menus in mobile
* [share admin / libraries] fixed the operation menus in mobile
* [share admin / folders] fixed the operation menus in mobile
* [share admin / share links] fixed the operation menus in mobile
* [share admin / upload links] fixed the operation menus in mobile
* [linked devices] fixed the operation menus in mobile
* [invite guest] fixed the operation menus in mobile
* [repo trash dialog] fixed the operation menus in mobile
* [pdf file view] added 'find' operation icon; redesigned the 'find' bar
* [pdf file view] the 'find' bar: updated the 'find previous/next' buttons; added a 'clear query' function
* [pdf file view] 'print': redesigned the 'Preparing document for printing' dialog
* [pdf file view] the 'find' bar: updated the styles of the border & the 'input'
* [pdf file view] 'preparing document for printing' dialog: updated UI details
* [pdf file view] 'preparing document for printing' dialog: modified the border & the backdrop