Use a flex PCB to create the extra grounds needed for the buttons, LEDs and motor.
Cut two pieces from the ground railing on the flex PCB, one piece with 7 holes and one with 3 holes as shown.
The motor requires a resistor, diode and transistor to work, follow the diagram as shown.
FONA Feather has a built-in USB battery charging circuit. Plug in a microUSB cable into the microUSB port on Fona to recharge the lipo battery using a USB adapter from a wall outlet or your computer.