重写ssh前端组件，通用化

frontend/src/components/Terminal/strategies/SSHConnectionStrategy.ts

@@ -117,7 +117,15 @@ export class SSHConnectionStrategy extends BaseConnectionStrategy {
      */
     sendInput(data: string): void {
         if (this.ws && this.ws.readyState === WebSocket.OPEN) {
-            this.ws.send(data);
+            this.ws.send(JSON.stringify({
+                type: 'input',
+                data: {
+                    request: {
+                        type: 'input',
+                        command: data
+                    }
+                }
+            }));
         }
     }