Convert partial level 4 files to typescript for contributing to `metamask-controller.js`

[DDDDDanica]

Convert dependency of files for metamask-controller.js (level 2) we want to target based on typescript migration dashboard.

Level 4

• shared/modules/mv3.utils.js
• app/scripts/controllers/permissions/background-api.js
• app/scripts/controllers/permissions/caveat-mutators.js
• app/scripts/controllers/permissions/permission-log.js
• app/scripts/controllers/permissions/selector.js
• app/scripts/controllers/permissions/specifications.js
• app/scripts/lib/rpc-method-middleware/createMethodMiddleware.js