Editing the names of Apps in the Control Panel

Hi there

I am using the official Events add on and have successfully created an 'Offers' type app just by changing some of the templates.

The final step now is to make it so instead of Apps > Events in the control panel, it reads as Apps > Offers. Likewise when you click through to the 'Events' homepage within the control panel, changing where it says 'Listing Events' to 'Listing Offers' and on the Dashboard, changing 'Events' to 'Offers'.

Could you please let me know the associated files so I can edit this.

Thanks