Add support for JSX in stuff we import in Cypress test code

[MadLittleMods]

Add support for JSX in stuff we import in Cypress test code

Spawning from:

• Ask to refresh timeline when historical messages are imported (MSC2716) #8354 (comment)
• Ask to refresh timeline when historical messages are imported (MSC2716) #8354 (comment)

What have I done so far?

1. Adding "jsx": "react", to cypress/tsconfig.json -> 9.5k errors
2. Add --jsx react to the Cypress part of the lint:types package.json script to match the other part of the command there -> 9.5k errors
3. Add "esModuleInterop": true, to cypress/tsconfig.json -> 189 errors
4. Add "dom.iterable" to lib in cypress/tsconfig.json matching the root tsconfig.json -> 175 errors
5. Add import "../src/@types/global"; to cypress/global.d.ts -> 36 errors
6. Add import "../src/@types/svg"; and import "../src/@types/raw-loader"; to cypress/global.d.ts -> 14 errors
7. Add "module": "commonjs" to cypress/tsconfig.json -> 0 errors

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This change is marked as an internal change (Task), so will not be included in the changelog.

[t3chguy]

@MadLittleMods as you should be aware, we need to be load balancing review amongst the team as about 1/3 of all overall reviews are currently done by me which is far from the state we should be in. Given this is a draft, if you want support then I suggest https://matrix.to/#/#element-dev:matrix.org