[ENG-14223][eas-cli] improve class names and descriptions of env commands

[szdziedzic]

Why

Make class names more consistent with other commands

Improve descriptions

How

Make class names more consistent with other commands

Improve descriptions

Test Plan

Tests

[linear[bot]]

ENG-14223 Improve descriptions and class names of env vars EAS CLI commands

[szdziedzic]

• #2711 👈 (View in Graphite)
• main

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[github-actions[bot]]

Subscribed to pull request	File Patterns	Mentions
**/*	@khamilowicz, @sjchmiela

Generated by CodeMention

[github-actions[bot]]

Size Change: +191 B (0%)

Total Size: 52.9 MB

Filename	Size	Change
./packages/eas-cli/dist/eas-linux-x64.tar.gz	52.9 MB	+191 B (0%)

_{compressed-size-action}

[github-actions[bot]]

❌ It looks like a changelog entry is missing for this PR. Add it manually to CHANGELOG.md. ⏩ If this PR doesn't require a changelog entry, such as if it's an internal change that doesn't affect the user experience, you can add the "no changelog" label to the PR.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 88.23529% with 4 lines in your changes missing coverage. Please review.

Project coverage is 52.77%. Comparing base (bb3915d) to head (e2d65d9). Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/eas-cli/src/commands/env/pull.ts	50.00%	2 Missing :warning:
packages/eas-cli/src/commands/env/push.ts	50.00%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2711 +/- ## ======================================= Coverage 52.77% 52.77% ======================================= Files 579 579 Lines 22194 22194 Branches 4343 4343 ======================================= Hits 11710 11710 Misses 10448 10448 Partials 36 36 ```

:umbrella: View full report in Codecov by Sentry.
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