Convert to image handler hook based viewer insertion

Signed-off-by: Justin Georgi <justin.georgi@gmail.com>

modules/glmv.js

@@ -6,6 +6,7 @@ headElem.appendChild(modelLoad)
 let urlProm, dataProm
 let isFilePageImage = false
 
+/*
 let glbElems = document.querySelectorAll('.mw-body-content [href$=".glb"][title$=".glb"')
 if (glbElems.length > 0) {
     [...glbElems].forEach((ge, idx) => {
@@ -65,4 +66,5 @@ async function getModelMeta(getTitle) {
         "page": getTitle
     });
     return JSON.parse($(metaApiResp.parse.text['*']).find('pre').text() || '{}')
-}
+}
+*/