feat(eliza): add plugins support

[victorgaard]

Why?

• Added supported plugins to constants
• Added plugin dropdown to builder form
• Added validation for the final characterfile json
• Added better error visualization in review page

collapsed.errors.mov

plugin-support.mov

👆 disregard errors in review page from this demo

Tickets?

• PLAT-2015

Contribution checklist?

• The commit messages are detailed
• The build command runs locally
• Assets or static content are linked and stored in the project
• Document filename is named after the slug
• You've reviewed spelling using a grammar checker
• For documentation, guides or references, you've tested the commands and steps
• You've done enough research before writing

Security checklist?

• Sensitive data has been identified and is being protected properly
• Injection has been prevented (parameterized queries, no eval or system calls)
• The Components are escaping output (to prevent XSS)

References?

Optionally, provide references such as links

Preview?

Optionally, provide the preview url here

[changeset-bot]

⚠️ No Changeset found

Latest commit: e778879

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[nlc616]

Only comment so far after watching the full video is that that error section at :49 seems unworkably long

how can we make this error text more human-readable?

[bcamarneiro]

lgtm 👍