Verify link-escape workaround coexists with upstream Gutenberg fix; remove once min WP includes it

[kraftbj]

Background

PR #118 added src/components/LinkEscapeFix.js, a DOM-level workaround for #116: pressing Escape to close the link popover (Ctrl+K / Cmd+K) caused the caret to jump to position 0. The workaround tracks the caret offset via selectionchange and restores it after the popover closes.

The root cause lived upstream in @wordpress/rich-text. An upstream fix has now landed in Gutenberg:

• Original upstream PR: Rich Text: Restore selection when focus returns from a popover gutenberg#77435 (closed in favor of the one below)
• Merged fix: Rich Text: Restore the selection when focus returns to the editable gutenberg#80396 — "Rich Text: Restore the selection when focus returns to the editable", milestone Gutenberg 23.7, merged 2026-07-17. Expected to ship in WordPress 7.1.

Task 1 — Confirm coexistence

Verify that the #118 workaround and the upstream fix do not conflict when both are present (i.e. running Press This against a WordPress build / Gutenberg that already includes WordPress/gutenberg#80396).

The workaround was designed to be a harmless no-op once upstream is fixed (it restores the caret to offset N when it is already at N), but this should be confirmed in practice:

• Link + Escape via Ctrl+K / Cmd+K keeps the caret at the end of the linked text (no jump to 0)
• Same via the toolbar Link button
• Escape without entering a URL does not move the caret
• No double-restoration, flicker, or caret misplacement introduced by the two fixes running together

Task 2 — Remove the workaround

Once Press This's minimum required WordPress version includes the upstream fix, remove the workaround.

• Current minimum: Requires at least: 6.9 (readme.txt, press-this-plugin.php)
• Upstream fix ships in: WP 7.1 (via Gutenberg 23.7)

When the minimum bumps to 7.1+:

• Delete src/components/LinkEscapeFix.js
• Remove its import/render from src/components/PressThisEditor.js
• Rebuild and confirm After adding link (with ctrl+k) and pressing escape, cursor goes to first character position / top left in window #116 does not regress

Related: #116, #118