Release 2.3.0

A share can now hold a private text (a password, a key, a short note)
with its files or on its own. The upload page's new "Private text" card
takes up to 100 KB; the browser encrypts the text and sends it through
the same chunk pipeline as a file, flagged is_text on share_files, so it
gets the share's password, expiry, download limit and cleanup.

The recipient sees the text only after pressing "Show text", which
counts as their download, so a messenger link preview cannot use up a
share limited to one download. The text is left out of the file list,
the ZIP and the file counts; the admin dashboard marks shares that hold
one with "Text".

The website gains a Private text feature card and a fifth phone
screenshot; every screenshot is retaken.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/Browser/ShareFlowTest.php

@@ -175,6 +175,28 @@ test('the settings Save button is end-aligned at less than the form\'s width', f
     ['/admin/settings', '[data-test="save-settings"]'],
 ]);
 
+test('a recipient reveals a share\'s private text on a phone, and the page has no popovers', function () {
+    $page = ready(visit('/upload'));
+
+    $page->type('[data-test="share-text"]', 'the wifi password is sunflower')
+        ->click('[data-test="create-share"]');
+    $page->wait(1);
+    $page->assertSee('Share Created!');
+
+    $shareUrl = $page->script('document.querySelector(\'[data-test="share-link"]\').value');
+
+    $page = ready(visit($shareUrl)->resize(393, 852));
+
+    $page->click('[data-test="show-text"]');
+    $page->wait(1);
+    $page->assertSeeIn('[data-test="shared-text"]', 'the wifi password is sunflower');
+
+    $page
+        ->assertScript("document.querySelectorAll('[popover]').length === 0")
+        ->assertScript('document.documentElement.scrollWidth <= window.innerWidth')
+        ->assertNoJavaScriptErrors();
+});
+
 test('the admin dashboard heads its shares list with an h2, both in one card', function () {
     $admin = User::factory()->admin()->create();
     Share::factory()->count(2)->create();