[8.x] [ES|QL] Removes the warnings from the console (#202899) (#203004)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[ES|QL] Removes the warnings from the console
(#202899)](#202899)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Stratoula
Kalafateli","email":"[email protected]"},"sourceCommit":{"committedDate":"2024-12-04T18:37:05Z","message":"[ES|QL]
Removes the warnings from the console
(#202899)","sha":"c2f706d2504d742d5018c00e1e513e9357133f2a","branchLabelMapping":{"^v9.0.0$":"main","^v8.18.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:skip","v9.0.0","Feature:ES|QL","Team:ESQL","backport:version","v8.18.0"],"title":"[ES|QL]
Removes the warnings from the
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Removes the warnings from the console
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Removes the warnings from the console
(#202899)","sha":"c2f706d2504d742d5018c00e1e513e9357133f2a"}},{"branch":"8.x","label":"v8.18.0","branchLabelMappingKey":"^v8.18.0$","isSourceBranch":false,"state":"NOT_CREATED"}]}]
BACKPORT-->

Co-authored-by: Stratoula Kalafateli <[email protected]>

packages/kbn-esql-editor/src/editor_footer/index.tsx

@@ -297,7 +297,13 @@ export const EditorFooter = memo(function EditorFooter({
                     />
                   )}
                   <EuiFlexItem grow={false}>
-                    <EuiButtonIcon iconType="documentation" onClick={toggleLanguageComponent} />
+                    <EuiButtonIcon
+                      iconType="documentation"
+                      onClick={toggleLanguageComponent}
+                      aria-label={i18n.translate('esqlEditor.query.documentationAriaLabel', {
+                        defaultMessage: 'Open documentation',
+                      })}
+                    />
                   </EuiFlexItem>
                 </EuiFlexGroup>
               </EuiFlexItem>