Enhance resolvers with integration

[hyochan]

• Move signInEmail query to mutation with lacking useLazyQuery

  • Currently, useLazyQuery does not return promises useLazyQuery execution function should return a promise apollographql/react-apollo#3499.

• Change status to statusMessage and do migration

  • Fix some of migration scripts.

• Add and update types for User
  • Add isOnline, lastSignedIn fields.
  • Changed to DATEONLY type for birthday and prevent being parsed to javascript date (DATEONLY field is being parsed as a javascript Date with time/zone sequelize/sequelize#4858).'

[codecov]

Codecov Report

Merging #25 into master will increase coverage by 0.1%.
The diff coverage is 37.5%.

@@            Coverage Diff            @@
##           master      #25     +/-   ##
=========================================
+ Coverage   57.19%   57.29%   +0.1%     
=========================================
  Files          18       18             
  Lines         278      281      +3     
  Branches       13       12      -1     
=========================================
+ Hits          159      161      +2     
- Misses        116      118      +2     
+ Partials        3        2      -1