Added JSDoc to ESLint (#3529)

* Added JSDoc to eslint rules

Signed-off-by: Matthew Nickson <mnickson@sidingsmedia.com>

* Fixed JSDoc eslint errors

Signed-off-by: Matthew Nickson <mnickson@sidingsmedia.com>

* Update the check-linters workflow to Node.js 20

---------

Signed-off-by: Matthew Nickson <mnickson@sidingsmedia.com>
Co-authored-by: Louis Lam <louislam@users.noreply.github.com>

server/socket-handlers/cloudflared-socket-handler.js

@@ -11,6 +11,7 @@ const cloudflared = new CloudflaredTunnel();
  * Change running state
  * @param {string} running Is it running?
  * @param {string} message Message to pass
+ * @returns {void}
  */
 cloudflared.change = (running, message) => {
     io.to("cloudflared").emit(prefix + "running", running);
@@ -19,7 +20,8 @@ cloudflared.change = (running, message) => {
 
 /**
  * Emit an error message
- * @param {string} errorMessage
+ * @param {string} errorMessage Error message to send
+ * @returns {void}
  */
 cloudflared.error = (errorMessage) => {
     io.to("cloudflared").emit(prefix + "errorMessage", errorMessage);
@@ -28,6 +30,7 @@ cloudflared.error = (errorMessage) => {
 /**
  * Handler for cloudflared
  * @param {Socket} socket Socket.io instance
+ * @returns {void}
  */
 module.exports.cloudflaredSocketHandler = (socket) => {
 
@@ -89,6 +92,7 @@ module.exports.cloudflaredSocketHandler = (socket) => {
 /**
  * Automatically start cloudflared
  * @param {string} token Cloudflared tunnel token
+ * @returns {Promise<void>}
  */
 module.exports.autoStart = async (token) => {
     if (!token) {
@@ -106,7 +110,10 @@ module.exports.autoStart = async (token) => {
     }
 };
 
-/** Stop cloudflared */
+/**
+ * Stop cloudflared
+ * @returns {Promise<void>}
+ */
 module.exports.stop = async () => {
     log.info("cloudflared", "Stop cloudflared");
     if (cloudflared) {