www/nextcloud: Update to 14.0.1

• Fix broken apps-pkg path [1]
• Fix plist issues [2]
• Add caching, pcntl, imagick options [3]
• Remove redundant USES (mysql, pgsql)

PR: 231391 [1], 231419 [2], 231704 [3]
Submitted by: Nathan <ndowens yahoo com> [2]
Submitted by: Matt <fsbruva yahoo com> [3]
Reported by: Damjan Jovanovic <damjan jov gmail.com> [1]
Reported by: mfechner [2]