fix 'add --help' typo, refactor ora to dynamic import, move colors.js

[ixc7]

Summary

Fixes 'add --help' typo, refactors ora to dynamic import statement, moves colors.js

What are the specific steps to test this change?

For example:

1. Clone the repository
2. run 'npm i -D'
3. run ./bin/apostrophe add --help
4. run ./bin/apostrophe create (any name here)

What kind of change does this PR introduce?

(Check at least one)

• Bug fix
• New feature
• Refactor
• Documentation
• Build-related changes
• Other

Make sure the PR fulfills these requirements:

• It includes a) the existing issue ID being resolved, b) a convincing reason for adding this feature, or c) a clear description of the bug it resolves
• The changelog is updated
• Related documentation has been updated
• Related tests have been updated

If adding a new feature without an already open issue, it's best to open a feature request issue first and wait for approval before working on it.

Other information:

Moves "require('colors')" statement from bin/apostrophe to lib/util.js where it is used.

Fixes typo for "./bin/apostrophe add --help"
see https://asciinema.org/a/469939

Changes ora to dynamic import() statement
see sindresorhus/ora#189

apostrophe-cms/cli/lib/util.js:12
const ora = require('ora');
            ^

Error [ERR_REQUIRE_ESM]: require() of ES Module /Users/admin/work/node/apostrophe-cms/cli/node_modules/.pnpm/[email protected]/node_modules/ora/index.js from /Users/admin/work/node/apostrophe-cms/cli/lib/util.js not supported.
Instead change the require of index.js in /Users/admin/work/node/apostrophe-cms/cli/lib/util.js to a dynamic import() which is available in all CommonJS modules.
    at Object.<anonymous> (/Users/admin/work/node/apostrophe-cms/cli/lib/util.js:12:13)
    at Object.<anonymous> (/Users/admin/work/node/apostrophe-cms/cli/bin/apostrophe:6:14) {
  code: 'ERR_REQUIRE_ESM'
}

Node.js v17.4.0