feat: allow configuring expect options in the config

[sheremet-va]

Description

This PR adds an expect option to the root config and CLI:

/**
 * Configuration options for expect() matches.
 */
expect?: {
  /**
   * Throw an error if tests don't have any expect() assertions.
   */
  requireAssertions?: boolean
  /**
   * Default options for expect.poll()
   */
  poll?: {
    /**
     * Timeout in milliseconds
     * @default 1000
     */
    timeout?: number
    /**
     * Polling interval in milliseconds
     * @default 50
     */
    interval?: number
  }
}

Related: #5361

TODO

• Docs
• Tests (including browser support)

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