Tomm/public routes

[MuckT]

• Refactor public routes to use node-fetch instead of axios.
• Update public route tests to use nock to intercept requests.

[codecov-commenter]

Codecov Report

Merging #48 (2182e19) into dev (37faa7c) will decrease coverage by 23.36%. The diff coverage is 62.26%.

@@             Coverage Diff             @@
##              dev      #48       +/-   ##
===========================================
- Coverage   85.71%   62.34%   -23.37%     
===========================================
  Files           1        9        +8     
  Lines           7      162      +155     
  Branches        0       17       +17     
===========================================
+ Hits            6      101       +95     
- Misses          1       57       +56     
- Partials        0        4        +4     

Impacted Files	Coverage Δ
src/middleware/bearer.js	15.38% <15.38%> (ø)
src/middleware/basic.js	23.07% <23.07%> (ø)
src/models/user.js	34.37% <34.37%> (ø)
src/routes/user.js	47.61% <47.61%> (ø)
src/models/index.js	81.81% <81.81%> (ø)
src/handlers/error.js	83.33% <83.33%> (ø)
src/routes/public.js	90.69% <90.69%> (ø)
src/handlers/not-found.js	100.00% <100.00%> (ø)
src/server.js	94.73% <100.00%> (+9.02%)	:arrow_up:

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