Update snapcraft python deps, and build for multiple architectures

snap/snapcraft.yaml

@@ -1,6 +1,6 @@
 name: onionshare
 base: core18
-version: '2.4'
+version: '2.4.dev1'
 summary: Securely and anonymously share files, host websites, and chat using Tor
 description: |
   OnionShare lets you securely and anonymously send and receive files. It works by starting 
@@ -8,9 +8,11 @@ description: |
   web address so others can download files from you, or upload files to you. It does _not_ 
   require setting up a separate server or using a third party file-sharing service.
 
-grade: stable # stable or devel
+grade: develop # stable or devel
 confinement: strict
 
+architectures: [amd64, i386, arm64, armhf]
+
 apps:
   onionshare:
     common-id: org.onionshare.OnionShare
@@ -114,19 +116,19 @@ parts:
     plugin: python
     python-version: python3
     python-packages:
-      - poetry
       - click
       - flask
       - flask-socketio == 5.0.1
-      - pycryptodome
       - psutil
       - pysocks
       - requests
-      - stem
+      - unidecode
       - urllib3
       - eventlet
       - setuptools
+      - pynacl
       - colorama
+      - git+https://github.com/onionshare/stem.git@1.8.1
     stage:
       - -usr/lib/x86_64-linux-gnu/libcrypto.so.1.1
       - -usr/share/doc/libssl1.1/changelog.Debian.gz