feat(app): Add persistent unique user ID to intercom data

[mcous]

overview

This PR updates the intercom configuration to attach a unique user ID (generated on first open of the app) that is stored on the filesystem to persist between app openings and re-installs. This should allow users to keep their conversations going.

It also lays a little bit of groundwork for users to be able to input their name and email for support purposes.

Closes #1999

changelog

• feat(app): Add persistent unique user ID to intercom data

review requests

I separated support from analytics to make sure we don't leak data between the too and keep our modules (the code kind) more focused.

• App still initializes MixPanel and sends analytics events
  • Remember to set OT_APP_MIXPANEL_ID
• New conversation shows up with unique user_id and generic "App User" name in intercom
  • Remember to set OT_APP_INTERCOM_ID
  • Ask me for a testing environment ID to avoid confusing our support folks

[codecov]

Codecov Report

Merging #2004 into edge will decrease coverage by 0.28%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##             edge    #2004      +/-   ##
==========================================
- Coverage   32.16%   31.87%   -0.29%     
==========================================
  Files         429      430       +1     
  Lines        6867     6948      +81     
==========================================
+ Hits         2209     2215       +6     
- Misses       4658     4733      +75

Impacted Files	Coverage Δ
app/src/config/index.js	45.45% <ø> (ø)	⬆️
app-shell/lib/config.js	40% <ø> (ø)	⬆️
app/src/analytics/index.js	0% <ø> (ø)	⬆️
app/src/support.js	0% <0%> (ø)
app/src/index.js	0% <0%> (ø)	⬆️
...er/src/components/StepEditForm/TransferLikeForm.js	0% <0%> (ø)	⬆️
...designer/src/components/StepEditForm/formFields.js	0% <0%> (ø)	⬆️
protocol-designer/src/steplist/formProcessing.js	3.67% <0%> (+0.14%)	⬆️
... and 2 more

---

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 938a3fa...ed032f3. Read the comment docs.

[Kadee80]

🎤 🌐

[b-cooper]

🏯