feat: use frontend-plugin-framework to provide a FooterSlot

[brian-smith-tcril]

Description

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How Has This Been Tested?

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Screenshots/sandbox (optional):

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Before	After

Merge Checklist

• If your update includes visual changes, have they been reviewed by a designer? Send them a link to the Sandbox, if applicable.
• Is there adequate test coverage for your changes?

Post-merge Checklist

• Deploy the changes to prod after verifying on stage or ask @openedx/edx-infinity to do it.
• 🎉 🙌 Celebrate! Thanks for your contribution.

[arbrandes]

👍🏼

[awais-ansari]

The Discussion Forum is not working on stage. API calls are working fine. There is no code error in the console. We suspect that this PR might be a cause behind this issue. So, I'm reverting this PR.

[awais-ansari]

Discussion is working fine now after reverting this PR.

[brian-smith-tcril]

@awais-ansari is stage using a custom footer component?

edit: see below comment for updated plan

My assumption is that stage is using https://github.com/edx/frontend-component-footer-edx, in which case FooterSlot is not being provided by that package. There are 2 ways to go about solving this:

• Port feat: provide FooterSlot frontend-component-footer#423 over to https://github.com/edx/frontend-component-footer-edx so the package provides FooterSlot
• Utilize the FooterSlot and env.config.js in this MFE to replace the footer instead of relying on overriding the package.

[brian-smith-tcril]

We're working on a new pattern that will allow the footerslot to be shared while not requiring any updates to forked footers.

[awais-ansari]

@brian-smith-tcril good to hear that but we are not using any custom footer component. Today the same issue occurred on account MFE. The Stage was broken for account MFE. We need to update the testing approach.