Add onboarding for Go Fiber

[ribice]

[github-actions[bot]]

🚨 Warning: This pull request contains Frontend and Backend changes!

It's discouraged to make changes to Sentry's Frontend and Backend in a single pull request. The Frontend and Backend are not atomically deployed. If the changes are interdependent of each other, they must be separated into two pull requests and be made forward or backwards compatible, such that the Backend or Frontend can be safely deployed independently.

Have questions? Please ask in the #discuss-dev-infra channel.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 68.75000% with 5 lines in your changes are missing coverage. Please review.

Project coverage is 79.97%. Comparing base (e9071c2) to head (9ea7d87).

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #68665      +/-   ##
==========================================
- Coverage   79.97%   79.97%   -0.01%     
==========================================
  Files        6500     6501       +1     
  Lines      290312   290328      +16     
  Branches    50021    50021              
==========================================
+ Hits       232191   232194       +3     
+ Misses      57754    57687      -67     
- Partials      367      447      +80     

Files	Coverage Δ
src/sentry/models/project.py	97.35% <ø> (ø)
src/sentry/utils/platform_categories.py	100.00% <ø> (ø)
...components/onboarding/frameworkSuggestionModal.tsx	67.07% <ø> (ø)
static/app/data/platformCategories.tsx	100.00% <ø> (ø)
static/app/data/platformPickerCategories.tsx	100.00% <ø> (ø)
static/app/data/platforms.tsx	100.00% <ø> (ø)
static/app/gettingStartedDocs/go/fiber.tsx	68.75% <68.75%> (ø)

... and 100 files with indirect coverage changes

[getsantry[bot]]

This pull request has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you add the label WIP, I will leave it alone unless WIP is removed ... forever!

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"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀

[ribice]

cc @cleptric