Feat: Add "Rewiring America" embed

[frimpongopoku]

Summary / Highlights

Made a route that renders the rewiring America page; "Rewiring America" guys have not made provision for React embeds, so it had to be implemented this way. So on the frontend, the Iframe just loads the embed through the backend here. Works with frontend PR : https://github.com/massenergize/frontend-portal/pull/1366

Details (Give details about what this PR accomplishes, include any screenshots etc)

Testing Steps (Provide details on how your changes can be tested)

Requirements (place an x in each [ ])

• [x] I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• [x] I've tested my changes manually.
• [ ] I've added unit tests to my PR.

Transparency (Project board)

• [x] I've given my PR a meaningful title.
• [x] I linked this PR to the relevant issue.
• [ ] I moved the linked issue from the "Sprint backlog" to "In progress" when I started this.
• [ ] I moved the linked issue to "QA Verification" now that it is ready to merge.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 60.00000% with 6 lines in your changes missing coverage. Please review.

Project coverage is 54.49%. Comparing base (557c4a3) to head (f8bdf94). Report is 4 commits behind head on main.

Files	Patch %	Lines
src/api/decorators.py	55.55%	4 Missing :warning:
src/website/views.py	66.66%	2 Missing :warning:

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1073 +/- ## ========================================== - Coverage 54.49% 54.49% -0.01% ========================================== Files 430 430 Lines 32157 32169 +12 ========================================== + Hits 17524 17530 +6 - Misses 14633 14639 +6 ```

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