Fix scrolling and missing Close button in the Select image dialog in Elastic/mobile (#8367)

CHANGELOG.md

@@ -11,6 +11,7 @@
 - Fix handling of unicode/special characters in custom From input (#8357)
 - Fix some PHP8 compatibility issues (#8363)
 - Fix chpass-wrapper.py helper compatibility with Python 3 (#8324)
+- Fix scrolling and missing Close button in the Select image dialog in Elastic/mobile (#8367)
 
 ## Release 1.5.1
 

skins/elastic/styles/widgets/editor.less

@@ -78,6 +78,10 @@ div.tox {
         overflow: unset;
     }
 
+    .tox-dialog__content-js {
+        overflow: auto;
+    }
+
     .tox-dialog-wrap__backdrop {
         background-color: @color-dialog-overlay-background;
     }