Never-hide phrases, a match tester, and broader detection coverage. Key changes:

• Never-hide phrases: add a phrase once and no post containing it is ever hidden — even when the post also matches a spam pattern.
• Match tester: the options page now tells you whether a pasted post would be blocked, and by which pattern, before you rely on it.
• School and showcase pages: detection and blocking now also run on school and showcase feeds.
• Comment-level blocking: a bait comment now hides just the comment instead of the whole post — innocent posts stay visible.
• First-run walkthrough: new installs get a one-time guided tour of the options page.
• Per-pattern stats: the popup and options page now show how often each pattern blocks, so you can see which ones do the work.
• Persistent suggestions: dismissed suggestions stay dismissed, and suggestions can be added as contains-match phrases from the options page.

New since 1.2.0:
• Published on Chrome Web Store with direct install links
• Firefox manifest compliance — supports both Firefox Desktop and Android
• Storage migration hardened against write failures
• In-feed "Show" and "Not spam" buttons now sync correctly with the popup undo list
• Context menu now reinstates on extension updates, not just first install
• Fixed minor UI glitches: options page flash on save error, first-run toast placement,
unused DOM elements when no author detected
• Updated release notes and docs in all 5 languages (EN, ES, FR, PT, DE)