[SR] Prepare strings for translation - Add context to interactive graph strings (#2407)

## Summary:
We held off on translations until now, beacuse the Interactive Graph strings were
still in flux. Now that they're finalized, we can send them in for translations.

I added context to all the strings that need to be translated so that
- it's clear for translators looking at the translation ticket what
  the context is for each individual string.
- it'll be easy for us to create the translation ticket in the first place.
  Since these are going to count as new strings, they'll trigger the
  action on the PR that will create a translation ticket for us that's
  pre-populated with all new strings.

NOTE: This PR is probably easier to review with the "Hide whitespace" option.

Issue: https://khanacademy.atlassian.net/browse/LEMS-2660

## Test plan:
- I looked at the PR diff, and then did a page search for every string on the left side and confirmed it's the exact same on the right side to make sure that no strings accidentally got changed in this PR.
- We'll have to make sure that the strings are detected in the webapp PR so we can create a translation ticket with the new context.

Author: nishasy

Reviewers: benchristel, SonicScrewdriver, nishasy, mark-fitzgerald, catandthemachines, anakaren-rojas

Required Reviewers:

Approved By: SonicScrewdriver

Checks: ✅ 8 checks were successful

Pull Request URL: #2407

Author: nishasy

.changeset/friendly-seas-scream.md

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+"@khanacademy/perseus": patch
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+[SR] Prepare strings for translation - Add context to interactive graph strings