✨(a11y) add skip to content button for keyboard accessibility

add SkipToContent component to meet RGAA skiplink requirement

Signed-off-by: Cyril <c.gromoff@gmail.com>

✅(frontend) add e2e test for skiplink and fix broken accessibility test

ensures skiplink behavior is tested and stabilizes a failing accessibility test

Signed-off-by: Cyril <c.gromoff@gmail.com>

CHANGELOG.md

@@ -6,6 +6,11 @@ and this project adheres to
 
 ## [Unreleased]
 
+### Changed
+
+- ♿(frontend) improve accessibility:
+  - ♿(frontend) add skip to content button for keyboard accessibility #1624
+
 ## [4.0.0] - 2025-12-01
 
 ### Added
@@ -13,6 +18,14 @@ and this project adheres to
 - ✨ Add comments feature to the editor #1330
 - ✨(backend) Comments on text editor #1330
 - ✨(frontend) link to create new doc #1574
+- ♿(frontend) improve accessibility:
+  - ♿(frontend) add skip to content button for keyboard accessibility #1624
+
+### Fixed
+
+- 🐛(frontend) fix toolbar not activated when reader #1640
+- 🐛(frontend) preserve left panel width on window resize #1588
+- 🐛(frontend) prevent duplicate as first character in title #1595
 
 ### Changed
 
@@ -23,12 +36,6 @@ and this project adheres to
   - ♿(frontend) improve share modal button accessibility #1626
   - ♿(frontend) improve screen reader support in DocShare modal #1628
 
-### Fixed
-
-- 🐛(frontend) fix toolbar not activated when reader #1640
-- 🐛(frontend) preserve left panel width on window resize #1588
-- 🐛(frontend) prevent duplicate as first character in title #1595
-
 ## [3.10.0] - 2025-11-18
 
 ### Added
@@ -48,6 +55,9 @@ and this project adheres to
   - ♿(frontend) improve ARIA in doc grid and editor for a11y #1519
   - ♿(frontend) improve accessibility and styling of summary table #1528
   - ♿(frontend) add focus trap and enter key support to remove doc modal #1531
+- 🐛(frontend) preserve @ character when esc is pressed after typing it #1512
+- 🐛(frontend) make summary button fixed to remain visible during scroll #1581
+- 🐛(frontend) fix pdf embed to use full width #1526
 - 🐛(frontend) fix alignment of side menu #1597
 - 🐛(frontend) fix fallback translations with Trans #1620
 - 🐛(export) fix image overflow by limiting width to 600px during export #1525