Serve GVL languages as they are requested

[gilluminate]

Closes PROD-2412

Description Of Changes

Because GVL languages are so bandwidth intensive, it is preferred to only load the appropriate language at the appropriate time.

• At initialization time: load the user’s preferred language based on “best locale”
• At language switch

In the UI we communicate that we are fetching the language by spinning the globe icon. The api result is so fast that most users won't experience this anyway. Example with network throttling at 2G Speeds:

Code Changes

• Add spin animation to globe during api load
• update initial call to gvl/translations to only load current "best" locale
• update language switcher to call gvl/translation for updating

Steps to Confirm

• For non-TCF experiences, nothing should change; language switcher should behave as normal
• For TCF experiences:
  • Open network tab and notice that on first load the call to gvl/translations only asks for and returns the user's current locale
  • in the lanugage switcher of the overlay, change languages
  • notice that a new call has been made to gvl/translations and that it asks for and returns the newly selected locale.

Pre-Merge Checklist

• All CI Pipelines Succeeded
• Issue Requirements are Met
• Update CHANGELOG.md

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1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
fides-plus-nightly	⬜️ Ignored (Inspect)	Visit Preview		Jul 20, 2024 0:21am

[cypress]

Passing run #9043 ↗︎

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Merge 93f1afc into 7db927b...
Project: fides	Commit: 6dd526f0e4 ℹ️
Status: Passed	Duration: 00:35 💡
Started: Jul 20, 2024 12:32 AM	Ended: Jul 20, 2024 12:32 AM

Review all test suite changes for PR #5112 ↗︎

[jpople]

Everything looks good to me! Nice work on the animation, that's very cute.

[cypress]

Passing run #9054 ↗︎

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Details:

Serve GVL languages as they are requested (#5112)
Project: fides	Commit: 40ab56a835
Status: Passed	Duration: 00:35 💡
Started: Jul 22, 2024 4:19 PM	Ended: Jul 22, 2024 4:19 PM

Review all test suite changes for PR #5112 ↗︎