fix: react/redux issue with specParser

[nickofthyme]

Summary

Fixes #720

• update react versions to ^16.3.0
• add redux middleware for debugging
• refactor spec parsing reducers

[markov00]

One possible fix is the following:
removing the injected.specParsing(); call on the SpecsParserComponent this is what is causing the issue in that case.
We have also to update the reducer to handle the parsing in a different way:

• removing the SPEC_PARSING reducer
• on the SPEC_PARSED reducer we should update the state.specs taking care of a possible missing Setting component like:

specs: {
              ...state.specs,
              [DEFAULT_SETTINGS_SPEC.id]: state.specs[DEFAULT_SETTINGS_SPEC.id] ?? DEFAULT_SETTINGS_SPEC,
            },

• on the UPSERT_SPEC action reducer we should change the state applying the SPEC_PARSING flags like:

specsInitialized: false,
chartRendered: false,

This should solve the issue without causing any major problem on our current "parsing" mechanism

[codecov-commenter]

Codecov Report

Merging #723 into master will decrease coverage by 0.57%.
The diff coverage is 73.45%.

@@            Coverage Diff             @@
##           master     #723      +/-   ##
==========================================
- Coverage   74.80%   74.23%   -0.58%     
==========================================
  Files         265      267       +2     
  Lines        8541     8588      +47     
  Branches     1714     1732      +18     
==========================================
- Hits         6389     6375      -14     
- Misses       2099     2161      +62     
+ Partials       53       52       -1     

Impacted Files	Coverage Δ
src/chart_types/goal_chart/state/chart_state.tsx	59.18% <0.00%> (ø)
.../chart_types/partition_chart/state/chart_state.tsx	74.50% <0.00%> (ø)
src/components/portal/utils.ts	21.42% <0.00%> (-78.58%)	⬇️
src/specs/constants.ts	100.00% <ø> (ø)
src/state/actions/specs.ts	100.00% <ø> (+6.66%)	⬆️
src/state/spec_factory.ts	96.15% <ø> (+3.84%)	⬆️
src/components/portal/tooltip_portal.tsx	12.30% <9.09%> (-53.32%)	⬇️
src/state/chart_state.ts	87.30% <33.33%> (+0.20%)	⬆️
...state/selectors/get_internal_is_tooltip_visible.ts	75.00% <50.00%> (ø)
src/components/tooltip/get_tooltip_settings.ts	57.14% <57.14%> (ø)
... and 26 more

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[markov00]

LGTM

[markov00]

🎉 This PR is included in version 19.6.2 🎉

The release is available on:

• GitHub release
• npm package (@latest dist-tag)

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