Fix PowerShellProcess.dipose() to fire the onExited event

It was only firing when the terminal was closed, not whenever the process exited
(which didn't make sense given its name and how we were using it).

Author: andyleejordan

src/process.ts

@@ -146,7 +146,7 @@ export class PowerShellProcess {
 
     public dispose(): void {
         this.logger.writeVerbose(`Disposing PowerShell process with PID: ${this.pid}`);
-
+        this.onExitedEmitter.fire();
         void this.deleteSessionFile(this.sessionFilePath);
 
         this.consoleTerminal?.dispose();
@@ -230,7 +230,6 @@ export class PowerShellProcess {
         }
 
         this.logger.writeWarning(`PowerShell process terminated or Extension Terminal was closed, PID: ${this.pid}`);
-        this.onExitedEmitter.fire();
         this.dispose();
     }
 }

src/session.ts

@@ -530,13 +530,13 @@ export class SessionManager implements Middleware {
                 this.sessionSettings);
 
         languageServerProcess.onExited(
-            async () => {
+            () => {
                 LanguageClientConsumer.onLanguageClientExited();
 
                 if (this.sessionStatus === SessionStatus.Running
                     || this.sessionStatus === SessionStatus.Busy) {
                     this.setSessionStatus("Session Exited!", SessionStatus.Failed);
-                    await this.promptForRestart();
+                    void this.promptForRestart();
                 }
             });