fix(template-typescript): add eslint-plugin-import/typescript rules

[unasuke]

• I have read the contribution documentation for this project.
• I agree to follow the code of conduct that this project follows, as appropriate.
• The changes are appropriately documented (if applicable).
• The changes have sufficient test coverage (if applicable).
• The testsuite passes successfully on my local machine (if applicable).

Summarize your changes:

It's required config in typesctipt project.
https://github.com/benmosher/eslint-plugin-import#typescript

[codecov]

Codecov Report

Merging #2048 (ce557bd) into master (001ff24) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2048   +/-   ##
=======================================
  Coverage   72.65%   72.65%           
=======================================
  Files          74       74           
  Lines        2220     2220           
  Branches      420      420           
=======================================
  Hits         1613     1613           
  Misses        444      444           
  Partials      163      163           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 001ff24...ce557bd. Read the comment docs.

[malept]

Thanks!