[FIX] web_editor: tel url in werkzeug parser

Before 8557bcf the URLs were never rewritten for multilang, which was an
error and could duplicated the number of requests on frontend.

Since 8557bcf the URLs are rewritten. In Odoo the werkzeug library is
used to parse the URLs (this is similar to python parsing URL but works
in python2 and python3 the same), and in this particular instance it
chooses that tel:800800 is website http://tel:800800 and not a telephone
number.

The problem is when the url uses the uri 'tel:' and only numbers as a
phone number, if the user uses the global format for telephone number
(with the +) or using a separator for the numbers (e.g. '-' , '/'), in
these cases there are no problems parsing the url (phone number RFC:
https://tools.ietf.org/html/rfc3966).

This commit changes the uri 'tel:' to 'tel://' this one is correctly
parsed by the werkzeug library.

opw-2029844
closes #34306

closes odoo/odoo#34586

Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>

addons/web_editor/static/src/js/editor/summernote.js

@@ -2296,7 +2296,7 @@ $.summernote.pluginEvents.backColor = function (event, editor, layoutInfo, backC
 
 options.onCreateLink = function (sLinkUrl) {
     if (sLinkUrl.indexOf('mailto:') === 0 || sLinkUrl.indexOf('tel:') === 0) {
-      // pass
+      sLinkUrl = sLinkUrl.replace(/^tel:([0-9]+)$/, 'tel://$1');
     } else if (sLinkUrl.indexOf('@') !== -1 && sLinkUrl.indexOf(':') === -1) {
       sLinkUrl =  'mailto:' + sLinkUrl;
     } else if (sLinkUrl.indexOf('://') === -1 && sLinkUrl[0] !== '/'