test: Adds storybook to EditableTitle component

[michael-s-molina]

SUMMARY

• Adds storybook to EditableTitle component
• Moves EditableTitle tests to component's folder

TEST PLAN

1 - Execute EditableTitle tests
2 - All tests should pass

@rusackas @junlincc

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Requires DB Migration.
• Confirm DB Migration upgrade and downgrade tested.
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #13362 (b3eb238) into master (b4ca39c) will decrease coverage by 4.29%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master   #13362      +/-   ##
==========================================
- Coverage   77.12%   72.82%   -4.30%     
==========================================
  Files         894      595     -299     
  Lines       45672    21254   -24418     
  Branches     5492     5493       +1     
==========================================
- Hits        35223    15478   -19745     
+ Misses      10325     5652    -4673     
  Partials      124      124              

Flag	Coverage Δ
cypress	58.09% <ø> (+<0.01%)	⬆️
hive	?
javascript	62.37% <0.00%> (-0.03%)	⬇️
mysql	?
postgres	?
presto	?
python	?
sqlite	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...components/EditableTitle/EditableTitle.stories.tsx	0.00% <0.00%> (ø)
...et-frontend/src/components/EditableTitle/index.tsx	75.30% <ø> (ø)
superset/commands/base.py
superset/examples/flights.py
superset/examples/birth_names.py
superset/db_engine_specs/clickhouse.py
superset/queries/schemas.py
superset/models/schedules.py
superset/utils/cache.py
superset/examples/random_time_series.py
... and 293 more

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[pkdotson]

LGTM! Thanks for doing this!

[rusackas]

LGTM!