Release v5.0.0-alpha

Feature branch pre-release

• Full-blown Immich<->Lightroom sync
• Use Immich smart search from Lightroom
• Import based on smart search.
• Track originalAssetId and exportAssetId to assist with publish+export both and stacking.

What's Changed

• feat: implement original file upload handling and user confirmation f… by @bmachek in #141
• Revise credits section wording by @bmachek in #144

Full Changelog: v4.3.2...v5.0.0-alpha