⚡️(a11y) improve keyboard access for language menu and action buttons

Enhances nav for language switch and makes DocsGridActions buttons accessible

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

CHANGELOG.md

@@ -15,6 +15,7 @@ and this project adheres to
   - #1235
   - #1255
   - #1262
+  - #1244
   - #1270
 
 ## [3.5.0] - 2025-07-31
@@ -35,7 +36,9 @@ and this project adheres to
 - 🔧(project) change env.d system by using local files #1200
 - ⚡️(frontend) improve tree stability #1207
 - ⚡️(frontend) improve accessibility #1232
-- 🛂(frontend) block drag n drop when not desktop #1239
+- 🛂(frontend) block drag n drop when not desktop 
+#1239
+
 
 ### Fixed