Introduce a list of image mime types we can support as images

E.g. TIFF will now be handled as a generic file, not image, even though it has mime prefix "image/"

src/main.js

@@ -16,6 +16,8 @@ import Vue3Sanitize from "vue-3-sanitize";
 import vuetify from './plugins/vuetify';
 import { Buffer } from 'buffer/'
 import { createApp, h } from 'vue';
+import { supportedImageTypes } from '@/plugins/utils';
+
 globalThis.Buffer = Buffer;
 
 var defaultOptions = Vue3Sanitize.defaults;
@@ -25,6 +27,9 @@ defaultOptions.allowedTags = [];
 const app = createApp({
   render: () => h(App)
 });
+app.config.globalProperties.supportedImageTypes = supportedImageTypes;
+
+
 app.use(Vue3Sanitize, defaultOptions);
 
 app.config.productionTip = false