DOC-3163: Exception when pressing tab in the last cell of a non-editable table. (#3653)

* DOC-3163: Exception occurs when pressing  in the last cell of a non-editable table.

* Update modules/ROOT/pages/7.7.2-release-notes.adoc

Co-authored-by: Karl Kemister-Sheppard <[email protected]>

* Update modules/ROOT/pages/7.7.2-release-notes.adoc

* Update modules/ROOT/pages/7.7.2-release-notes.adoc

---------

Co-authored-by: Karl Kemister-Sheppard <[email protected]>

Author: abhinavgandham

modules/ROOT/pages/7.7.2-release-notes.adoc

@@ -23,6 +23,20 @@ include::partial$misc/admon-releasenotes-for-stable.adoc[]
 
 {productname} {release-version} also includes the following bug fixes:
 
+=== Exception occurs when pressing `tab` in the last cell of a non-editable table
+// #TINY-11797
+
+Previously in {productname}, an issue was identified where pressing `Tab` in the last cell of a non-editable table attempted to insert a new row and move the selection to it. This behavior resulted in an infinite loop. Additionally, if `Tab` was pressed in an editable cell and the next cell was a `contentEditable="false"` (`CEF`) cell, with a `contenteditable="true"` element inside, the focus would skip the `CEF` cell.
+
+This issue also triggered error messages when pressing `Tab` in the last cell of a non-editable table, negatively impacting page performance.
+
+{productname} {release-version} resolves this issue by refining the tab navigation behavior:
+
+* Pressing `Tab` in the last cell of a non-editable table now has no effect.
+* When `Tab` is pressed in an editable cell, and the next cell is a `CEF` cell with an editable element inside, the cursor is moved to an editable element within the `CEF` cell.
+
+These improvements enhance table navigation, prevent unnecessary error messages, and optimize performance when working with non-editable tables.
+
 === Deleting an empty block within an `<li>` element would move the cursor at the end of the `<li>` element.
 // #TINY-11763
 
@@ -32,7 +46,6 @@ These issues led to confusing behavior, as users experienced unintended cursor m
 
 {productname} {release-version} resolves these issues by improving the list behavior. As a result, the cursor remains stable, and users no longer experience unexpected movements or error messages.
 
-
 [[security-fixes]]
 == Security fixes