Fix MacOS virtual memory size

We now show the resident/working set size instead of the full memory size, since on MacOS the full memory size reports the address space. What we really want is the used physical memory.

Author: 2kai2kai2

package-lock.json

@@ -88,6 +88,6 @@
         "vscode-test": "^1.6.1"
     },
     "dependencies": {
-        "node-ps-data": "^1.4.0"
+        "node-ps-data": "^1.4.1"
     }
 }

package.json

@@ -267,7 +267,7 @@ async function postData(
 function getData(pid: number) {
     let cpu = ps.cpuTime(pid);
     let timecpu = Date.now();
-    let mem = ps.memInfo(pid);
+    let mem = ps.memRSS(pid);
     let timemem = Date.now();
     let read = ps.fileRead(pid);
     let timeread = Date.now();