Add resources download button + click to download picker in replay (#469)

Fixes #467 
- Add a download button on the resource page for each entry to allow
downloading each resource no matter what type.
- Add a new 'click to download' image or media picker that allows
highlighting + clicking on image/media to download on the page (to get
around 'Save Image As...) not working. Also supports inline svgs +
background images - should work better than Save Image As...
- Location bar shows a popup indicating in 'click to download' mode,
which can be canceled. Otherwise, mode remains until user downloads
something.
- Type fixes: Untangle Page and URLResource types for better type
checking.
- Deps: bump to wabac.js 2.25.1 for new download mode support

---------
Co-authored-by: Tessa Walsh <tessa@bitarchivist.net>

package.json

@@ -1,7 +1,7 @@
 {
   "name": "replaywebpage",
   "productName": "ReplayWeb.page",
-  "version": "2.3.23",
+  "version": "2.4.0",
   "description": "Serverless Web Archive Replay",
   "repository": "https://github.com/webrecorder/replayweb.page",
   "homepage": "https://replayweb.page/",
@@ -22,7 +22,7 @@
   "dependencies": {
     "@fortawesome/fontawesome-free": "^5.15.4",
     "@shoelace-style/shoelace": "~2.15.1",
-    "@webrecorder/wabac": "^2.24.5",
+    "@webrecorder/wabac": "^2.25.1",
     "bulma": "^0.9.3",
     "electron-log": "^4.4.1",
     "electron-updater": "^6.6.2",