UX improvement: search/replace by pattern

[smiakchilo]

Currently, the Link Inspector offers several features that rely on RegExp patterns, such as "Filter" and "Replace".
RegExp is generally sophisticated for an end-user.
As a Link Inspector user, I would like some visual feedback if the RegExp I entered is invalid.
On a separate account, I would like a "simplified" pattern engine. For exaple, the filesystem-like glob pattern that contains only * and ?. It would cover a large part of the ordinary use cases