cleanup+ readme updates

electron/ipc/mouseTracking.ts

@@ -1,3 +1,6 @@
+// uiohook-napi [WIP: scoping out mouse tracking with cross platform support for potential auto zoom/ post processing cursor effects]
+// not currently being used.
+
 import { uIOhook } from 'uiohook-napi'
 
 let isMouseTrackingActive = false

electron/main.ts

@@ -147,7 +147,6 @@ app.whenReady().then(async () => {
     () => mainWindow,
     () => sourceSelectorWindow,
     (recording: boolean, sourceName: string) => {
-      // removed unused assignment to _isRecording
       selectedSourceName = sourceName
       if (recording) {
         if (!tray) createTray();