Map generate character classes to opt-in CLI flags

[Steve0x2a]

handleGenerate now maps character-class booleans to the CLI's opt-in flags (--uppercase, --lowercase, --number, --special) instead of emitting unregistered --no* options.

Credit: @WhimsicalCat
Fixes #223

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[bitwarden-bot]

Thank you for your contribution! We've added this to our internal tracking system for review.
ID: PM-42447
Link: https://bitwarden.atlassian.net/browse/PM-42447

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[SaintPatrck]

Hi @Steve0x2a

Thank you for your contribution. Please sign the CLA so we can accept these changes.

[SaintPatrck]

⚠️ We only push a flag when a class is true, so an explicit false is silently dropped instead of excluded. bw generate reinstates its default classes whenever none of the four flags is present, so {uppercase: false} still comes back with uppercase enabled. Could we default the three CLI-defaulted classes to true so an explicit exclusion actually holds?

Suggested change

	if (validatedArgs.uppercase) {
	params.push('--uppercase');
	}
	if (validatedArgs.lowercase === false) {
	params.push('--noLowercase');
	if (validatedArgs.lowercase) {
	params.push('--lowercase');
	}
	if (validatedArgs.number === false) {
	params.push('--noNumbers');
	if (validatedArgs.number) {
	params.push('--number');
	}
	if (validatedArgs.special === false) {
	params.push('--noSpecial');
	if (validatedArgs.special) {
	params.push('--special');
	}
	if (validatedArgs.uppercase ?? true) {
	params.push('--uppercase');
	}
	if (validatedArgs.lowercase ?? true) {
	params.push('--lowercase');
	}
	if (validatedArgs.number ?? true) {
	params.push('--number');
	}
	if (validatedArgs.special) {
	params.push('--special');
	}