Fix identation in app.json and add icon url
Fix identation in app.json and add icon url

daveallie/pgweb,freeformz/pgweb,trigrass2/pgweb,brianlow/pgweb,daveallie/pgweb,freeformz/pgweb,niiyz/pgweb,cmabastar/pgweb,w4ngyi/pgweb,beni55/pgweb,sosedoff/pgweb,w4ngyi/pgweb,trigrass2/pgweb,niiyz/pgweb,beni55/pgweb,adamjaso/pgweb,daveallie/pgweb,akarki15/pgweb,freeformz/pgweb,xiongjungit/pgweb,trigrass2/pgweb,hardware/pgweb,brianlow/pgweb,freeformz/pgweb,trigrass2/pgweb,niiyz/pgweb,beni55/pgweb,niiyz/pgweb,xiongjungit/pgweb,adamjaso/pgweb,xiongjungit/pgweb,akarki15/pgweb,brianlow/pgweb,sosedoff/pgweb,w4ngyi/pgweb,sosedoff/pgweb,brianlow/pgweb,adamjaso/pgweb,w4ngyi/pgweb,cmabastar/pgweb,adamjaso/pgweb,akarki15/pgweb,hardware/pgweb,hardware/pgweb,daveallie/pgweb,sosedoff/pgweb,akarki15/pgweb,beni55/pgweb,hardware/pgweb,cmabastar/pgweb,xiongjungit/pgweb