Electron-136 (Optimize memory by reloading the app when the user is idle) (#335)

- Refresh app when memory exceeds the threshold and if user is inactive
- Add logic to reload app when memory exceeds threshold and if user is inactive
- Add reload threshold
- Fix unit test

js/mainApiMgr.js

@@ -17,6 +17,7 @@ const { bringToFront } = require('./bringToFront.js');
 const eventEmitter = require('./eventEmitter');
 const { isMac } = require('./utils/misc');
 const { openScreenPickerWindow } = require('./desktopCapturer');
+const { optimizeMemory } = require('./memoryMonitor');
 
 const apiEnums = require('./enums/api.js');
 const apiCmds = apiEnums.cmds;
@@ -147,6 +148,11 @@ electron.ipcMain.on(apiName, (event, arg) => {
                 windowMgr.getMenu().popup(browserWin, { x: 20, y: 15, async: true });
             }
             break;
+        case apiCmds.optimizeMemoryConsumption:
+            if (typeof arg.memory === 'object' && typeof arg.memory.workingSetSize === 'number') {
+                optimizeMemory(arg.memory);
+            }
+            break;
         default:
     }