Upgrade EUI to v31.7.0 (elastic#91210) (elastic#91558)

* eui to 31.6.0

* flyout, collapsible snapshot updates

* initial overlaymask removal

* undo jest

* overlaymask src snapshot updates

* more overlaymask removals

* overlaymask removal xpack test updates

* saved objects modal form

* eui to 31.7.0

* code, codeblock types

* snapshot update

* tooltip

* remove ownFocus from ConfirmModal

* remove fragments
# Conflicts:
#	x-pack/plugins/canvas/public/components/asset_manager/asset_manager.component.tsx

package.json

@@ -95,7 +95,7 @@
     "@elastic/datemath": "link:packages/elastic-datemath",
     "@elastic/elasticsearch": "npm:@elastic/elasticsearch-canary@^7.12.0-canary",
     "@elastic/ems-client": "7.12.0",
-    "@elastic/eui": "31.4.0",
+    "@elastic/eui": "31.7.0",
     "@elastic/filesaver": "1.1.2",
     "@elastic/good": "^9.0.1-kibana3",
     "@elastic/node-crypto": "1.2.1",