fix(build): exclude iOS Safari < 12 from browserslist targets (stable32)

[miaulalala]

Reworked. This PR originally bumped @nextcloud/browserslist-config from ^3.0.1 to ^3.1.2. That fixed the build but raised the minimum Chrome target from 109 to 121, and Cypress runs bundled Electron with no explicit browser: — which appears to be why runner 1 went red on this PR while it passes on #2831 (same branch, no asset changes). The narrower fix below achieves the same result without moving the Chrome floor or changing a single dependency.

The problem

esbuild 0.28.x hard-errors where earlier versions warned, when it cannot downlevel a syntax feature to a configured target:

src/sidebar.ts:26:9: ERROR: Transforming destructuring to the configured target environment
("chrome109", "edge140", "firefox140", "ios11", "opera122", "safari26" + 2 overrides) is not supported yet

ios11 is in that list because stable32 is the last branch on @nextcloud/browserslist-config 3.0.1, whose config is ['>0.25%', 'not op_mini all', 'not dead', 'Firefox ESR'] — that percentage threshold still catches iOS Safari 11.

The source is ordinary: const { default: ActivityTab } = await import('./views/ActivityTab.vue'). Nothing is wrong with it; the target list is the problem.

Note this is latent, not hypothetical. esbuild arrives via vite's dependency range, so any lockfile regeneration on this branch can pull 0.28.x in — which is exactly what happened on #2778.

The fix

One line, package.json:

  "browserslist": [
    "extends @nextcloud/browserslist-config",
+   "not ios_saf < 12"
  ],

No dependency change. package-lock.json is untouched.

Testing

Verified on node 22.22.3 / npm 10.9.8, matching this branch's engines.

Sufficiency — using #2778's exact lockfile (esbuild 0.28.1, browserslist-config 3.0.1) and adding only this override, so the dependency tree is provably identical between runs:

	ios11 errors	build
#2778 as-is	4	fails
#2778 + this override	0	passes

No collateral change to browser support:

	before	after
min Chrome	109	109 (unchanged)
min iOS Safari	11	16.6

For contrast, the ^3.1.2 bump would have moved Chrome to 121 and iOS to 17.4.

Also confirmed npm ci && npm run build leaves a clean working tree, so the recompiled assets here match a fresh build, and there are no conflicts against current stable32.

Unblocks #2778.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[cypress]

Activity    Run #4095

Run Properties:   Passed #4095  •  562db8b7ed: fix(build): exclude iOS Safari < 12 from browserslist targets (stable32)

Project	Activity
Branch Review	chore/stable32-browserslist-config-3.1.2
Run status	Passed #4095
Run duration	02m 05s
Commit	562db8b7ed: fix(build): exclude iOS Safari < 12 from browserslist targets (stable32)
Committer	Anna
View all properties for this run ↗︎

---

Test results
Failures	0
Flaky	0
Pending	1
Skipped	0
Passing	9
View all changes introduced in this branch ↗︎

[miaulalala]

/compile amend