Fully implement settings

frontend/wailsjs/go/main/App.d.ts

@@ -10,6 +10,6 @@ export function GetLastPer100(arg1:string):Promise<main.WailsPer100>;
 
 export function GetSettings():Promise<main.settings>;
 
-export function SetSetting(arg1:string,arg2:any):Promise<main.settings>;
+export function SetSetting(arg1:string,arg2:number):Promise<main.WailsGenericAck>;
 
 export function UpdateFood(arg1:main.Food):Promise<main.WailsFood1>;