Backend: Update deps in go.mod and go.sum

Signed-off-by: Michael Mayer <michael@photoprism.app>

Metadata: Ignore "SubSecModifyDate" in Exiftool JSON files photoprism…

…#3780

Signed-off-by: Michael Mayer <michael@photoprism.app>

ARMv7: Add install-libheif.sh to docker/develop/armv7/Dockerfile

Signed-off-by: Michael Mayer <michael@photoprism.app>

Video: Update README.md

Signed-off-by: Michael Mayer <michael@photoprism.app>

Frontend: Update deps in package-lock.json

Signed-off-by: Michael Mayer <michael@photoprism.app>

Tests: Add unit tests photoprism#3482

Photos: Skip related albums from which a photo was removed photoprism…

…#3095

Signed-off-by: Michael Mayer <michael@photoprism.app>

Docker: Set org.opencontainers.image.url label to public repo URL

Signed-off-by: Michael Mayer <michael@photoprism.app>

Docs: Update README.md

Signed-off-by: Michael Mayer <michael@photoprism.app>

Config: Update flags.go and cli_flags_test.go

Signed-off-by: Michael Mayer <michael@photoprism.app>