fix(redhat-spec): copy 512x512 icon to /usr/local/share/nylas/resources/app/nylas.png
fix(redhat-spec): copy 512x512 icon to /usr/local/share/nylas/resources/app/nylas.png

The icon build/resources/nylas.png is exactly the same as build/resources/linux/icons/512.png
Not confident that the spec script is run from base N1 directory to use the nylas.png in the spec file

nirmit/nylas-mail,nirmit/nylas-mail,nylas-mail-lives/nylas-mail,nylas-mail-lives/nylas-mail,nylas/nylas-mail,nylas-mail-lives/nylas-mail,simonft/nylas-mail,nylas-mail-lives/nylas-mail,simonft/nylas-mail,simonft/nylas-mail,nylas/nylas-mail,nirmit/nylas-mail,nylas-mail-lives/nylas-mail,nylas/nylas-mail,nirmit/nylas-mail,nylas/nylas-mail,nirmit/nylas-mail,simonft/nylas-mail,nylas/nylas-mail,simonft/nylas-mail