Rename PhotoPrism example files and move resource limits to env file for project consistency.

Config/PhotoPrism/example.env

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+# This file will need to be copied as `.env`.
+
+##
+# Docker
+##
+
+COMPOSE_BAKE=true
+
+##
+# PhotoPrism
+##
+
+# Admin Details
+PHOTOPRISM_ADMIN_USER = "admin"                 # admin login username
+PHOTOPRISM_ADMIN_PASSWORD = "PleaseChangeMe"    # initial admin password (8-72 characters)
+
+# External FQDN
+#  Should be in the format "http(s)://domain.name(:port)/(path)".
+#  Seems to work best if you leave off the s if behind a revese proxy,
+#   such as: PHOTOPRISM_SITE_URL = "http://photoprism.example.com"
+PHOTOPRISM_SITE_URL = "http://localhost:2342"
+
+# Max Storage Space?
+PHOTOPRISM_ORIGINALS_LIMIT = 5000               # file size limit for originals in MB (increase for high-res video)
+
+# Site Metadata
+PHOTOPRISM_SITE_CAPTION = "AI-Powered Photos App"
+PHOTOPRISM_SITE_DESCRIPTION = ""                # meta site description
+PHOTOPRISM_SITE_AUTHOR = ""                     # meta site author
+
+# NSFW
+PHOTOPRISM_DETECT_NSFW = "false"                # automatically flags photos as private that MAY be offensive (requires TensorFlow)
+PHOTOPRISM_UPLOAD_NSFW = "true"                 # allows uploads that MAY be offensive (no effect without TensorFlow)
+
+# Data Limits
+PHOTOPRISM_FFMPEG_ENCODER = "software"          # H.264/AVC encoder (software, intel, nvidia, apple, raspberry, or vaapi)
+PHOTOPRISM_FFMPEG_SIZE = "1920"                  # video size limit in pixels (720-7680) (default: 3840)
+PHOTOPRISM_FFMPEG_BITRATE = "8"                 # video bitrate limit in Mbit/s (default: 50)
+
+##
+# MariaDB
+##
+
+MARIADB_DATABASE = "photoprism"
+MARIADB_USER = "photoprism"
+MARIADB_PASSWORD = "PleaseChangeMe"
+MARIADB_ROOT_PASSWORD = "PleaseChangeMe"
+
+##
+# Performance
+##
+
+CPU=2.00
+MEM=2.00G
+CPU_DB=0.50
+MEM_DB=0.50G