[FIX] web: unescapeHTML doesn't match old _.unescape

Since we've created unescapeHTML to replace the _.unescape function. The
issue is that _.unescape was using the hex code '&#x27," for the
character " ' ". And the new function uses the decimal code ''', but
as there are some old domains for dashboard have ben stored escaped with
'&#x27', we are now unable to unescape them.

closes odoo/odoo#122457

X-original-commit: 1516b52cc7266e4cb2afed2941d93f2f9bc21bb9
Signed-off-by: Lucas Perais (lpe) <lpe@odoo.com>
Signed-off-by: Masereel Pierre <pim@odoo.com>

addons/web/static/src/core/utils/strings.js

@@ -8,7 +8,7 @@ const htmlCaracters = {
     "&": "&",
     "<": "&lt;",
     ">": "&gt;",
-    "'": "&#39;",
+    "'": "&#x27;",
     '"': "&quot;",
     "`": "&#x60;",
 };