Refactor ipwb util import alias. Closes #392.

[machawk1]

No description provided.

[ibnesayeed]

Renaming it to a more sensible name is a good start, but more can be done to refactor utils (as discussed offline). This specific change LGTM!

[codecov]

Codecov Report

Merging #420 into master will decrease coverage by 0.72%.
The diff coverage is 3.03%.

@@            Coverage Diff             @@
##           master     #420      +/-   ##
==========================================
- Coverage   24.03%   23.31%   -0.73%     
==========================================
  Files           6        6              
  Lines        1111     1111              
  Branches      169      169              
==========================================
- Hits          267      259       -8     
- Misses        827      835       +8     
  Partials       17       17

Impacted Files	Coverage Δ
ipwb/replay.py	13.22% <3.03%> (ø)	⬆️
ipwb/indexer.py	54.95% <0%> (-3.61%)	⬇️

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