LPS-34257 Site's Membership Type needs a validation
LPS-34257 Source formatting
LPS-34257 Add missing "a" that appears in the key (and is grammatically correct) but is missing in the actual language key.
LPS-34257 Improve grammar slightly.
LPS-34257 Lang keys
LPS-35127 ckeditor link is absolute in Control Panel when using virtual host
LPS-35127 Source formatting
LPS-35127 the current layout may belong to the control panel, so that layoutSet is not the one we want. We need to obtain the layoutSet from the siteGroupId (scopeGroupId would be wrong also since we could be inside of a scope)