feat: better media types detection for JSON, XML and HTML lenses (#1438)

Co-authored-by: Andrew Bastin <andrewbastin.k@gmail.com>
Co-authored-by: Liyas Thomas <liyascthomas@gmail.com>

helpers/lenses/xmlLens.js

@@ -1,6 +1,6 @@
 const xmlLens = {
   lensName: "XML",
-  supportedContentTypes: ["application/xml", "image/svg+xml", "text/xml", "application/rss+xml"],
+  isSupportedContentType: (contentType) => /\bxml\b/i.test(contentType),
   renderer: "xmlres",
   rendererImport: () => import("~/components/lenses/renderers/XMLLensRenderer"),
 }