welcome wizard race condition Fix #914

[mattkrick]

testing the broken condition:

• get to step 2 of the welcome wizard
• move your mouse button to where the "kick the tires" button will appear
• hit enter & very, very quickly click the mouse button
• notice that the org wasn't created yet, so the no-payment modal pops up

with this patch, the delay occurs between step 2 and 3. this makes for a slower welcome wizard, but safer.

[codecov]

Codecov Report

Merging #1089 into master will decrease coverage by 12.36%.
The diff coverage is 18.72%.

@@            Coverage Diff             @@
##           master   #1089       +/-   ##
==========================================
- Coverage   58.26%   45.9%   -12.37%     
==========================================
  Files         123     169       +46     
  Lines        1699    2529      +830     
  Branches      238     399      +161     
==========================================
+ Hits          990    1161      +171     
- Misses        598    1113      +515     
- Partials      111     255      +144

Impacted Files	Coverage Δ
.../universal/styles/helpers/makeFieldColorPalette.js	50% <ø> (ø)
.../universal/components/MentionEmoji/MentionEmoji.js	50% <ø> (ø)
src/universal/utils/emojiArray.js	100% <ø> (ø)
src/universal/styles/ui.js	100% <ø> (ø)	⬆️
src/universal/components/Button/Button.js	23.33% <ø> (ø)
src/universal/components/MentionTag/MentionTag.js	50% <0%> (ø)
.../components/EditorLinkChanger/changerValidation.js	0% <0%> (ø)
src/universal/utils/isProjectPrivate.js	0% <0%> (ø)	⬆️
src/universal/validation/legitify.js	57.35% <0%> (-3.59%)	⬇️
src/universal/utils/draftjs/addTagToProject.js	10% <10%> (ø)
... and 82 more

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[jordanh]

LGTM!