* [image file view] added a zoomer(enable users to zoom in/out the image)
* [image file view] added 'rotate'(rotate the image in counter-clockwise direction and save it)
* [image file view] fixup
* [image file view] keep the 'prev/next' icons displayed on top of the image which is zoomed in
* [image file view] improved the display of the 'image saved' tip
* [image file view] don't offer 'zoom in/out' & 'rotate' for images with errors
* [image file view] don't offer 'rotate' for PSD & HEIC files
* [image file view] enable HEIC files to be viewed online
* [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
* [PDF file view] replaced the current 'details' panel with a new one(which can display meta data details)
* ['file view' with 'third party editor'] fixup for the 'title' of the page
* ['file view'] replaced the 'details' panel with a new one(which can display meta data details) for the other types of files
- file types: IMAGE VIDEO AUDIO SVG XMIND TEXT DOCUMENT(HAS_OFFICE_CONVERTER) SPREADSHEET(HAS_OFFICE_CONVERTER)
* [onlyoffice file view] added a custom toolbar(star/unstar, smart link, details, open parent folder, fold/unfold)
* [onlyoffice file view] added a new 'details' panel for it
* [file view] added 'Details' & 'open via client'
* [file view] adjusted places of operations
* [file view] 'open via client': use a new icon
* [file view] 'open via client': updated the icon