[eas-cli] improvements to eas onboarding after dogfooding

[szdziedzic]

Why

improvements to eas onboarding after dogfooding

• add spinner
• don't let EAS CLI crash after git diff with pager is closed with q
• remove the redundant white checkmark from logs
• ask the user to which directory we should clone the repo instead of if they want to continue

How

improvements to eas onboarding after dogfooding

Test Plan

test manually

[github-actions[bot]]

⏩ The changelog entry check has been skipped since the "no changelog" label is present.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 9.09091% with 20 lines in your changes are missing coverage. Please review.

Project coverage is 53.60%. Comparing base (917987a) to head (fb00801).

Files	Patch %	Lines
...ackages/eas-cli/src/commands/project/onboarding.ts	10.00%	8 Missing and 1 partial :warning:
packages/eas-cli/src/onboarding/runCommand.ts	14.29%	6 Missing :warning:
packages/eas-cli/src/vcs/git.ts	0.00%	5 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2367 +/- ## ========================================== - Coverage 53.63% 53.60% -0.02% ========================================== Files 530 530 Lines 19483 19495 +12 Branches 4120 4121 +1 ========================================== + Hits 10447 10448 +1 - Misses 8306 8317 +11 Partials 730 730 ```

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[github-actions[bot]]

Size Change: -3.13 kB (0%)

Total Size: 51.3 MB

Filename	Size	Change
./packages/eas-cli/dist/eas-linux-x64.tar.gz	51.3 MB	-3.13 kB (0%)

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