misc typing fixes and changlelog generator config

[tlambert03]

No description provided.

[codecov]

Codecov Report

Merging #292 (3a0256e) into main (c2de787) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head 3a0256e differs from pull request most recent head fa327b4. Consider uploading reports for the commit fa327b4 to get more accurate results

@@           Coverage Diff           @@
##             main     #292   +/-   ##
=======================================
  Coverage   89.96%   89.96%           
=======================================
  Files          29       29           
  Lines        3257     3258    +1     
=======================================
+ Hits         2930     2931    +1     
  Misses        327      327           

Impacted Files	Coverage Δ
magicgui/types.py	100.00% <100.00%> (ø)

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