wikijs: install backend npm deps on all archs, not just arm64

upstream stopped shipping backend/node_modules in the release tarball
for any arch as of 3.3.1, so amd64 installs crash on boot with
ERR_MODULE_NOT_FOUND. run npm ci unconditionally in install and update.

ct/wikijs.sh

@@ -45,11 +45,9 @@ function update_script() {
       restore_backup
 
       cd /opt/wikijs/backend
-      if [[ "$(arch_resolve)" == "arm64" ]]; then
-        msg_info "Building Wiki.js Dependencies"
-        $STD npm ci --omit=dev
-        msg_ok "Built Wiki.js Dependencies"
-      fi
+      msg_info "Installing Wiki.js Dependencies"
+      $STD npm ci --omit=dev
+      msg_ok "Installed Wiki.js Dependencies"
       if [[ "$PUPPETEER_INSTALLED" == "true" ]]; then
         msg_info "Reinstalling Puppeteer"
         $STD npm install --no-save --force --include=optional --no-ignore-scripts --no-audit --no-fund "puppeteer@$(sed -n 's/^installVersion: *//p' modules/extensions/puppeteer/definition.yml)"

install/wikijs-install.sh

@@ -22,12 +22,10 @@ PG_VERSION="17" setup_postgresql
 PG_DB_NAME="wiki" PG_DB_USER="wikijs_user" setup_postgresql_db
 fetch_and_deploy_gh_release "wikijs" "requarks/wiki" "prebuild" "latest" "/opt/wikijs" "wiki-js.tar.gz"
 
-if [[ "$(arch_resolve)" == "arm64" ]]; then
-  msg_info "Building Wiki.js Dependencies"
-  cd /opt/wikijs/backend
-  $STD npm ci --omit=dev
-  msg_ok "Built Wiki.js Dependencies"
-fi
+msg_info "Installing Wiki.js Dependencies"
+cd /opt/wikijs/backend
+$STD npm ci --omit=dev
+msg_ok "Installed Wiki.js Dependencies"
 
 msg_info "Configuring Wiki.js"
 mkdir -p /opt/wikijs_data