fix: config flow errors

[codecov-commenter]

Codecov Report

Merging #39 (613e53d) into dev (2e9ab8a) will increase coverage by 3.73%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              dev      #39      +/-   ##
==========================================
+ Coverage   91.09%   94.83%   +3.73%     
==========================================
  Files           5        5              
  Lines         337      329       -8     
==========================================
+ Hits          307      312       +5     
+ Misses         30       17      -13     

Impacted Files	Coverage Δ
custom_components/openei/__init__.py	88.17% <ø> (+1.17%)	:arrow_up:
custom_components/openei/config_flow.py	95.91% <100.00%> (+7.40%)	:arrow_up:

[github-actions[bot]]

🎉 HACS repository validator action summary 🎉 ✅ The repository is not archived ✅ manifest.json file exist ✅ All required keys are present in manifest.json ✅ hacs.json has the 'name' key set ✅ The repository has a description ✅ openei is added to https://github.com/home-assistant/brands NICE! ✅ The repository has topics ✅ The repository has issues enabled ✅ This day ends with an 'y' (Saturday) ✅ info.md exists ✅ Requirements validation ✅ Python wheels ✅ HACS load check