Standardize README badges

[AlgoFoe]

Description

What is this PR

• Bug fix
• Addition of a new feature
• Other

Why is this PR needed?

• This PR updates the README badges to follow the badge standard discussed across BrainGlobe repos.

What does this PR do?

• Reorganizes README badges into the agreed order.
• Adds missing badges.

References

• Issue-89

How has this PR been tested?

• The README was previewed locally and all badge links were verified.

Is this a breaking change?

• No.

Does this PR require an update to the documentation?

• No.

Checklist:

• The code has been tested locally
• Tests have been added to cover all new functionality (unit & integration)
• The documentation has been updated to reflect any changes
• The code has been formatted with pre-commit

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.20%. Comparing base (40346b5) to head (f8edbaf).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #453      +/-   ##
==========================================
- Coverage   89.37%   88.20%   -1.18%     
==========================================
  Files          27       27              
  Lines        1280     1280              
==========================================
- Hits         1144     1129      -15     
- Misses        136      151      +15     

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[alessandrofelder]

Great work - thanks @AlgoFoe