Make all templates local, ensure ssh keys for amd64 builds are generated on first boot

ansible/install-keanu-weblite.yml

@@ -33,19 +33,12 @@
       changed_when: false
 
     - name: Download keanu-weblite config file
-      ansible.builtin.get_url:
-        url: "{{ config_base_url }}/keanu-weblite-config.json"
+      ansible.builtin.template:
+        src: "templates/keanu-weblite-config.json.j2"
         dest: /tmp/keanu-weblite/src/assets/config.json
         mode: '0644'
       delegate_to: localhost
 
-    - name: Replace REPLACEME with butter_name in config.json
-      ansible.builtin.replace:
-        path: /tmp/keanu-weblite/src/assets/config.json
-        regexp: 'REPLACEME'
-        replace: "{{ butter_name }}"
-      delegate_to: localhost
-
     - name: Run npm build with legacy OpenSSL option
       ansible.builtin.shell: |
         export NODE_OPTIONS=--openssl-legacy-provider