* make sure that only the user wants to save

* Fix DCHECK failed + make a zip file

* fix author

* use standard download ui, tested with A9,A10,A11

* add request new log + clear all files

* reactivated immediate deletion of original files after zipping them + review tips

* Specify "n/a" as file size

* Reword button text as "Generate now"

* Change patch file name

* Change patch subject

* version for v91

* fix garbled UI

Co-authored-by: Carl <32685696+csagan5@users.noreply.github.com>

Co-authored-by: Carl <32685696+csagan5@users.noreply.github.com>

* Add a flag AllowUserCertificates default false

* add to bromite patches list

Since, `export-bookmarks-use-saf`, is disabled by default, I edited the `New Flags` section of README.