Revert "Revert "React 19"" (#12389)

* Revert "Revert "[DNM] React 19 (#12374)" (#12384)"

This reverts commit 15d7529.

* Set `async:false` on bundle script

* Revert Cypress amendments

Author: amoore108

.eslintrc.js

@@ -51,9 +51,6 @@ module.exports = {
           'custom-element',
           'custom-template',
           'fallback',
-          'fetchpriority',
-          'imagesizes',
-          'imagesrcset',
         ],
       },
     ],

.github/dependabot.yml

@@ -23,15 +23,6 @@ updates:
       - dependency-name: 'react-router'
       # https://jira.dev.bbc.co.uk/browse/NEWSWORLDSERVICE-2099: Delete path-to-regexp dependency
       - dependency-name: 'path-to-regexp'
-      # https://jira.dev.bbc.co.uk/browse/NEWSWORLDSERVICE-2187: Latest major version of react has breaking changes
-      - dependency-name: 'react'
-        update-types: ['version-update:semver-major']
-      - dependency-name: 'react-dom'
-        update-types: ['version-update:semver-major']
-      - dependency-name: '@types/react'
-        update-types: ['version-update:semver-major']
-      - dependency-name: '@types/react-dom'
-        update-types: ['version-update:semver-major']
     labels:
       - 'dependencies'
     groups: