Enable appservice mode for end-to-bridge encryption (MSC3202)

- Fix encryption with Synapse 1.141+ which blocks appservice users from /sync
- Set encryption.appservice=true in start.sh (all 3 occurrences)
- Bump version to 2.0.2

CloudronManifest.json

@@ -1,6 +1,6 @@
 {
-  "version": "2.0.0",
-  "upstreamVersion": "0.2510.0",
+  "version": "2.0.2",
+  "upstreamVersion": "0.2512.0",
   "id": "dev.maunium.whatsapp.cloudronapp",
   "title": "Matrix WhatsApp Bridge",
   "author": "Tulir Asokan <tulir@maunium.net>",
@@ -29,4 +29,4 @@
   "changelog": "file://CHANGELOG.md",
   "documentationUrl": "https://docs.mau.fi/bridges/go/whatsapp/index.html",
   "forumUrl": "https://matrix.to/#/#whatsapp:maunium.net"
-}
+}