Chronologically ordered Firefox history via dedicated trigger fh

[ffpyt]

Add ordered Firefox history via dedicated FirefoxHistoryHandler

Motivation

The existing FirefoxQueryHandler uses IndexQueryHandler which ranks results by fuzzy match quality. This is great for searching bookmarks & history by name, but makes it impossible to browse history in chronological order — Albert always reorders results by relevance, even for an empty query.

Changes

New FirefoxHistoryHandler(GeneratorQueryHandler)
A self-contained handler triggered by fh that yields history in recency order on every query. Typing after the trigger filters results by title or URL via a SQL LIKE clause while preserving the ordering. Because it uses GeneratorQueryHandler, Albert displays results exactly as returned without reranking.

Refactored Plugin
The plugin now properly separates concerns: Plugin(PluginInstance) owns shared state and configuration, while query handlers are standalone objects passed shared state at construction time. extensions() returns both handlers, letting Albert dispatch each trigger independently.

New get_recent_history() function
A dedicated SQL query separate from the existing get_history() (which is preserved unchanged for bookmark/history indexing). It filters out entries where last_visit_date IS NULL — avoiding unvisited prefetched or autocomplete URLs polluting the results — and returns rows ordered by last_visit_date DESC with an optional search filter and limit.

Triggers

Trigger	Handler	Behaviour
f	FirefoxQueryHandler	Fuzzy search over bookmarks and history
fh	FirefoxHistoryHandler	History ordered by most recently visited

[Copilot]

Pull request overview

This PR adds a dedicated history-browsing pathway for the Firefox plugin so users can browse history in true recency order (without Albert’s fuzzy-ranking reordering), while keeping the existing f fuzzy search behavior for bookmarks/history indexing.

Changes:

• Added FirefoxHistoryHandler (GeneratorQueryHandler) triggered by fh to return history in last_visit_date DESC order with optional LIKE filtering.
• Refactored plugin structure so Plugin owns shared config/state and exposes two independent handlers via extensions().
• Added get_recent_history() SQL helper to retrieve non-null last_visit_date entries ordered by recency.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
__init__.py	Adds get_recent_history, introduces new FirefoxHistoryHandler, and refactors plugin into separate handlers with dedicated triggers.
README.md	Documents the new fh trigger for chronological history browsing.

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[tomsquest]

Still not tested @ffpyt . Sorry for the delay. Cannot commit time for now.