Adblock Support for Embeds (#308)

Fixes #307 

- Adds optional adblock support, via wabac.js (dependent on
webrecorder/wabac.js#167).
- For now, adblock enabled only for embeds via the `useAdblock`
attribute, and can be enabled per archived item.
- By default, adblock filter rules from
[EasyList](https://easylist.to/easylist/easylist.txt) are used, however,
a custom filter rules file can be used via `adblockRulesUrl` attribute
(default is ./adblock/adblock.gz)
- Added `fetch-adblock.sh` script to fetch latest easylist, filter out
`##` rules and compress to `./adblock/adblock.gz`
- Not yet possible to enable adblock for standalone browsing via
replayweb.page
- bumps version to 2.0.0-beta.3

package.json

@@ -1,7 +1,7 @@
 {
   "name": "replaywebpage",
   "productName": "ReplayWeb.page",
-  "version": "2.0.0-beta.2",
+  "version": "2.0.0-beta.3",
   "description": "Serverless Web Archive Replay",
   "repository": "https://github.com/webrecorder/replayweb.page",
   "homepage": "https://replayweb.page/",
@@ -12,7 +12,7 @@
   "dependencies": {
     "@fortawesome/fontawesome-free": "^5.15.4",
     "@shoelace-style/shoelace": "^2.8.0",
-    "@webrecorder/wabac": "^2.17.3",
+    "@webrecorder/wabac": "^2.18.0",
     "bulma": "^0.9.3",
     "electron-log": "^4.4.1",
     "electron-updater": "^5.3.0",
@@ -73,7 +73,7 @@
     "/index.html"
   ],
   "scripts": {
-    "build": "webpack --mode production",
+    "build": "webpack --mode production && ./adblock/fetch-adblock.sh",
     "build-dev": "webpack --mode development",
     "build-docs": "yarn run build && cd mkdocs && ./copy-site.sh && mkdocs build",
     "publish-docs": "yarn run build && cd mkdocs && ./copy-site.sh && mkdocs gh-deploy --force",