chore: new omni-core package

[sampaiodiego]

Proposed changes (including videos or screenshots)

Issue(s)

https://rocketchat.atlassian.net/browse/CTZ-203

Steps to test or reproduce

Further comments

---

This pull request introduces a new package, omni-lib, to the Rocket.Chat codebase. The changes include the addition of new ESLint and TypeScript configuration files for both the omni-lib and omni-lib-ee packages, ensuring consistent code quality and compilation settings.

Key updates in this PR involve refactoring the department creation availability check by importing the functionality from the new @rocket.chat/omni-lib package, replacing the previous local implementation. This centralization of functionality is part of a broader refactoring effort.

Additionally, the PR introduces a new TypeScript module in the omni-lib-ee package, which exports a function patchOmniLib. This function applies patches, specifically modifying the isDepartmentCreationAvailable function to allow unlimited department creation if the 'livechat-enterprise' license is active.

The server-side patch initialization has been refactored to include the patchOmniLib invocation, and an unused import has been removed to streamline the code. These changes aim to enhance the modularity and maintainability of the Rocket.Chat codebase.

[dionisio-bot]

Looks like this PR is not ready to merge, because of the following issues:

• This PR is targeting the wrong base branch. It should target 7.10.0, but it targets 7.9.0

Please fix the issues and try again

If you have any trouble, please check the PR guidelines

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[github-actions]

PR Preview Action v1.6.2
🚀 View preview at https://RocketChat.github.io/Rocket.Chat/pr-preview/pr-35992/
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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 65.80%. Comparing base (e5a6899) to head (89c55fb).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #35992      +/-   ##
===========================================
- Coverage    65.81%   65.80%   -0.02%     
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  Lines       106922   106922              
  Branches     20397    20390       -7     
===========================================
- Hits         70373    70358      -15     
- Misses       33872    33888      +16     
+ Partials      2677     2676       -1     

Flag	Coverage Δ
e2e	58.11% <ø> (+0.01%)	⬆️
unit	70.93% <ø> (-0.03%)	⬇️

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