[v1] @quasar/app v1.0.0-beta.13 released!

[rstoenescu]

• feat: Upgrade to vue 2.6.10

• feat: Play nicer when quasar.conf.js > pwa > manifest is missing “icons” prop

• feat: Failsafe when trying to open browser

• feat: [v1] Feature Request: pass Vue class to createStore and createRouter #3640

• fix: Specifying ‘networkFirst’’ in a ‘runtimeCaching[].handler’ option is deprecated #3624