fix(app): normalize escaped newlines in release notes

[yashranaway]

Refs #1095 (does not close it; only addresses the rescoped sub-comment about escaped newlines).

Summary

• Convert literal \n and \r\n escape sequences to real newlines in release notes before they reach the Settings updates view.
• Apply the same normalization to both the string and array shapes returned by electron-updater, so notes built from releaseNotes arrays render with intended line breaks.
• Keep the existing whitespace-pre-wrap rendering path unchanged; this only fixes the source string when the upstream payload is double-escaped.

Verification

• git diff --check clean.
• pnpm --filter @openwork/app typecheck currently fails on unrelated origin/dev TypeScript errors in messaging-view-state.ts, command-palette.tsx, and settings-route.tsx; this branch does not touch those files.

Notes

• The broader "updates active by default" piece from the original issue body is split out into feat(app): default updateAutoDownload to true for new and unconfigured users #1663 (default flip plus explicit-opt-out-respecting migration).
• Still out of scope: the pill-like updates presentation and the required-update / backend-gated escalation path described on the issue.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
openwork-landing	Ready	Preview, Comment, Open in v0	May 5, 2026 6:41pm

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[src-opn]

Code verification issue:

The PR description says Closes #1095, but #1095 asks to make updates active by default with a gentle upgrade flow, including default/migration behavior and escalation paths. This patch only normalizes escaped release-note newlines in apps/app/src/react-app/domains/settings/state/electron-updater-state.ts.

Please remove or change the closing reference before merge, otherwise GitHub will close #1095 even though the requested update-default flow remains unimplemented.

Verification run:

• pnpm install --frozen-lockfile passed.
• pnpm --filter @openwork/app build passed.
• pnpm --filter @openwork/app typecheck failed on existing unrelated TypeScript errors outside this patch.

[yashranaway]

@src-opn updated the body to Refs #1095. The broader "updates active by default" piece from the issue body is up in #1663 (one-line default flip that respects explicit opt-out via the existing readStoredBoolean semantics). The pill-style presentation and required-update path stay open for a follow-up.