Run TypeScript compilation in Joplin Server scripts

Added 'yarn run tsc' to both update and install scripts for Joplin Server to ensure TypeScript sources are compiled. Also removed an unused variable from build.func for code cleanup.

ct/joplin-server.sh

@@ -47,6 +47,7 @@ function update_script() {
     $STD yarn workspaces focus @joplin/server
     cd packages/server
     $STD yarn run build
+    $STD yarn run tsc
     msg_ok "Updated Joplin-Server"
 
     msg_info "Starting Services"

install/joplin-server-install.sh

@@ -39,6 +39,7 @@ export BUILD_SEQUENCIAL=1
 $STD yarn workspaces focus @joplin/server
 cd packages/server
 $STD yarn run build
+$STD yarn run tsc
 
 cat <<EOF >/opt/joplin-server/.env
 PM2_HOME=/opt/pm2

misc/build.func

@@ -4508,7 +4508,6 @@ create_lxc_container() {
     fi
 
     ONLINE_TEMPLATES=()
-    ONLINE_TEMPLATE=""
     mapfile -t ONLINE_TEMPLATES < <(pveam available -section system 2>/dev/null | grep -E '\.(tar\.zst|tar\.xz|tar\.gz)$' | awk '{print $2}' | grep -E "^${TEMPLATE_SEARCH}.*${TEMPLATE_PATTERN}" | sort -t - -k 2 -V 2>/dev/null || true)
     [[ ${#ONLINE_TEMPLATES[@]} -gt 0 ]] && ONLINE_TEMPLATE="${ONLINE_TEMPLATES[-1]}"