Coronavirus updates

[balloob]

Breaking change

Proposed change

• Sort countries alphabetically in config flow (suggested by @bbrendon)
• Update names to include word coronavirus (suggested by @jurriaan)

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example entry for configuration.yaml:

# Example configuration.yaml

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• The code has been formatted using Black (black --fast homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• Untested files have been added to .coveragerc.

The integration reached or maintains the following Integration Quality Scale:

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[codecov]

Codecov Report

Merging #32417 into dev will decrease coverage by <.01%.
The diff coverage is 50%.

@@            Coverage Diff             @@
##              dev   #32417      +/-   ##
==========================================
- Coverage   94.71%    94.7%   -0.01%     
==========================================
  Files         780      780              
  Lines       56305    56305              
==========================================
- Hits        53327    53326       -1     
- Misses       2978     2979       +1

Impacted Files	Coverage Δ
homeassistant/components/coronavirus/sensor.py	0% <0%> (ø)	⬆️
...omeassistant/components/coronavirus/config_flow.py	100% <100%> (ø)	⬆️
homeassistant/helpers/entity.py	97.3% <0%> (-0.34%)	⬇️

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[jurriaan]

This is better, thanks :)

[frenck]

Looks good, tested it locally and migrated a "broken" state nicely.

"coronavirus" in the title could be "Coronavirus"; Nit-picking