Cut 1.42 and write what the store says about it

[andiwand]

Closes the Unreleased heading as 1.42 and writes the "What's New" text for all
eleven locales, so the release run has a section to build from and a full listing
to upload.

The copy

Written fresh from the cut section. Four lines:

- Password protected Word, Excel and PowerPoint files now say so instead of just refusing to open
- Text copied from a PDF comes out as readable words, highlighting works, and more PDFs open
- Repeating table headers stay in place, wide pictures fit the screen, and images in Word and Excel files show again
- Long documents open at the top of the first page on iPad

The fifth changelog entry - screenshots going up once each - is a release-run
fix, and nobody using the app would notice it. It stays out of the store copy.

Two entries that landed in the same core update are folded into one line with the
table headers, since on the outside they are all the same thing: a page that now
looks right.

Two changelog entries were still uncommitted

The wide-picture line and the screenshot line were sitting unstaged on main.
They are in the cut section here, alongside the broken-image line that came in
with #181.

1.41

It went out on 18 August without its date or its compare link, and [Unreleased]
still pointed at v1.40. Both fixed here.

1.42's heading is left undated on purpose - the tag does not exist until the
release run makes it.

Checked

changelog_section.py --version 1.42 returns the section, so the release run
will not refuse the version. store_listing.py --version 1.42 reports copy in
all 11 locales. Every file is 4 bullets, well inside the store's limit.

No version number is edited anywhere: MARKETING_VERSION is 0.0.0 in the
project and the release run supplies it from the dispatch input.

Before dispatching

Read the eleven files - they go to the store as written, and ten of them are in
languages CI cannot check.

🤖 Generated with Claude Code