Install prerequisites for pleroma in social instance

src/freedombone-app-pleroma

     remove_ddns_domain "$PLEROMA_DOMAIN_NAME"
 }
 
+function image_install_pleroma {
+    if [[ "$SOCIALINSTANCE" != 'pleroma' ]]; then
+        return
+    fi
+
+    # shellcheck disable=SC2154
+    chroot "$rootdir" apt-get -yq install wget imagemagick
+
+    image_install_elixir
+    image_install_postgresql
+}
+
 function install_pleroma {
     if [ ! $ONION_ONLY ]; then
         ONION_ONLY='no'

src/freedombone-image-customise

 atheros_wifi
 continue_installation
 image_install_nodejs
-image_install_elixir
 initialise_mesh
 configure_wifi
 configure_user_interface
 image_setup_utils
 image_install_inadyn
+image_install_pleroma
 image_preinstall_repos
 
 # remove downloaded packages

src/freedombone-utils-postgresql

     fi
 }
 
-function mesh_install_postgresql {
+function image_install_postgresql {
     # shellcheck disable=SC2154,SC2086
     chroot "$rootdir" apt-get -yq install $POSTGRESQL_PACKAGES
 
 
 function install_postgresql {
     if [[ $VARIANT == "mesh"* ]]; then
-        mesh_install_postgresql
+        image_install_postgresql
         return
     fi