The City of Petaluma shall have the right and power to make and enforce all laws and regulations in respect to municipal affairs, subject only to the restrictions and limitations provided in this Charter; provided, however, that nothing herein shall be construed to prevent or restrict the city from exercising or consenting to, and the city is hereby authorized to exercise any and all rights, powers, and privileges heretofore or hereafter granted or prescribed by the general laws of the state.