chore(deps): bump @screenly/edge-apps to 1.2.1

[nicomiguelino]

Summary

• Bumps @screenly/edge-apps from 1.0.0 to 1.2.1 (allowed by the existing ^1.0.0 range; only the lockfile needed updating)
• 1.2.1 removes the screen name from the shared <app-header> component (<brand-logo show-name> → <brand-logo>), fixing fix(app-header): remove screen name from header edge-apps-library#56
• Note: this app does not render <app-header> (it only uses setupTheme, addUTMParamsIf, getSettingWithDefault, setupErrorHandling, signalReady from the library), so the header fix itself has no visual effect here
• Regenerated all e2e screenshots against the updated dependency (minor byte-level diffs only, from local Chrome rendering; content unchanged)

Test plan

• bun install / bun update @screenly/edge-apps — lockfile now resolves @screenly/edge-apps@1.2.1
• bun run type-check passes
• bun run build succeeds
• bun run screenshots — all 10 resolutions regenerated and pass