fix: prevent init if local files belong to other app

[sobolk]

Description of changes

This PR adds validation to make sure that AppId passed via command line parameters match with appid stored in metadata files.

This is similar to existing validation that pull does here

amplify-cli/packages/amplify-cli/src/commands/pull.ts

Lines 41 to 45 in 33c10fd

	if (inputAppId && appId && inputAppId !== appId) {
	throw new AmplifyError('InvalidAmplifyAppIdError', {
	message: `Amplify appId mismatch.`,
	resolution: `You are currently working in the amplify project with Id ${appId}`,
	});

Issue #, if available

Description of how you validated changes

I did the following manually:

1. Created an app. Appid d2qe95s9uhn10w
2. Attempted to run init flow with different app id , i.e. amplify init --amplify "{\"envName\":\"dev\",\"appId\":\"d3jmsv5lpeg234\"}" --yes --forcePush

Checklist

• PR description included
• yarn test passes
• Tests are changed or added
• Relevant documentation is changed or added (and PR referenced)
• New AWS SDK calls or CloudFormation actions have been added to relevant test and service IAM policies
• Pull request labels are added

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.