Accessibility sweep: label remaining unlabeled controls (#231)

[kasnder]

Why

PR #625 fixed the specific app-list Internet toggle from #231, but issue #231 ("Accessibility issues") was deliberately left open by the maintainer for "further investigation" — its title is plural and it functioned as a tracking bucket. A full TalkBack/screen-reader pass turned up a number of other controls with the same class of problem (unlabeled toggles/buttons, info conveyed only visually). This PR addresses those. It's complementary to #625 and touches a disjoint set of controls.

The app already established the right patterns (importantForAccessibility="no" on decorative images in item_insights_header.xml, labeled delete button in item_wg_profile.xml) — they were just applied inconsistently. This makes them consistent.

What changed

🔴 Critical — primary controls with no accessible name

A MaterialSwitch with no text/contentDescription is announced only as "on, switch" with no name.

• actionmain.xml — the master tracker-blocking switch in the main header (swEnabled), the app's single most important control.
• item_vpn_status.xml — the VPN on/off switch (vpnEnabledSwitch).
• item_blocklist.xml + ActivityBlocklists.java — the per-row enable switch now gets a dynamic description naming the specific blocklist; the delete button gets a label and a 48dp touch target.

🟠 Moderate — information previously conveyed only visually

• AdapterLog.java — access-log status icons now announce connection allowed/blocked, network type (Wi-Fi/other), screen-on state, and the app name (previously color/icon only).
• 12 layouts (about, android, vpn, xposed, troubleshooting, sure, forwardadd, forwardapproval, datasaving, doze, enable, fragment_actions) — decorative illustrations marked importantForAccessibility="no" to stop TalkBack announcing "unlabeled image". Each was confirmed to sit beside a text label.

🟡 Minor — polish

• item_insights_header.xml — share button raised from 36dp to a 48dp touch target (icon size preserved via padding).
• item_timeline_entry.xml — decorative app icon silenced (app name is adjacent).
• fragment_actions.xml / list_item_trackers.xml — accessibilityHeading="true" on section titles so screen-reader users can navigate by heading.

Strings

10 new accessibility strings added to the base English values/strings.xml only — translations follow via the usual localization process.

No behavior or blocking-logic changes — purely accessibility labeling.

Verification

• ./gradlew compileGithubDebugJavaWithJavac — BUILD SUCCESSFUL.
• Not yet spot-checked on-device with TalkBack — worth verifying announced text before merge.

Note on #231

Suggest keeping #231 open (or filing a fresh "a11y sweep" issue) rather than fully closing it — this and #625 together are what the "further investigation" note meant, but on-device TalkBack verification is still pending.

🤖 Generated with Claude Code

[kasnder]

Good accessibility direction, but this is not merge-ready yet. Please remove the unrelated OPEN_ISSUES_TRIAGE.md changes and rebase—the branch currently conflicts and has no CI. There is also a TalkBack regression in AdapterLog: when app lookup fails, the blank icon becomes a focusable “App icon” target; when lookup succeeds, it repeats the adjacent app name as a separate focus stop. The icon is decorative here, so exclude it from accessibility instead, as this PR already does for the timeline icon. Once scoped and rebased, run CI and spot-check the affected screens with TalkBack; the remaining control labels, decorative-image exclusions, and touch-target improvement look useful.

[kasnder]

Implemented the requested review fixes in cef73ce: removed the unrelated OPEN_ISSUES_TRIAGE.md changes relative to master, removed the duplicate/phantom app-icon content descriptions, and marked the log icon decorative with importantForAccessibility="no". git diff --check passes. The full local Gradle verification became bottlenecked in the shared wgbridgeBuild; please use the new PR CI run as the definitive automated check, with an on-device TalkBack spot-check still recommended.