[ENG-811] Fix server Dockerfile + create CI workflow to build and publish docker image

[HeavenVolkoff]

• [X] Fix server docker build failing due to apt locking error
• [X] Enable assets feature for server Dockerfile
• [X] Add build step for web assets in server Dockerfile
• [X] Replace ffmpeg deps with only the libav* and related required lib (reduce size)
• [X] Create server release CI workflow
• [X] Add warning to tauri build command when DMG background is missing

[linear[bot]]

ENG-811 Fix server Dockerfile + create CI workflow to build and publish docker image

[vercel[bot]]

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2 Ignored Deployments

Name	Status	Preview	Comments	Updated (UTC)
spacedrive-landing	⬜️ Ignored (Inspect)	Visit Preview		Jun 24, 2023 7:57am
spacedrive-web	⬜️ Ignored (Inspect)	Visit Preview		Jun 24, 2023 7:57am