fix: s3 user annotations

[atolopko-czi]

#2540

Reviewers

Functional:
@ebezzi

Readability:

---

Changes

• do not attempt to create the user annotations directory if an s3 location is specified.

QA

cellxgene launch --user-generated-data-dir s3://atolopko-tmp/cellxgene_desktop  ...

❯ aws s3 ls s3://atolopko-tmp/cellxgene_desktop/
                           PRE x-gene-sets-FXQEAGSB-backups/
2022-07-26 08:47:15        266 x-gene-sets-FXQEAGSB.csv

[codecov]

Codecov Report

Merging #2541 (0a52bbc) into main (de44739) will decrease coverage by 0.05%.
The diff coverage is 61.11%.

❗ Current head 0a52bbc differs from pull request most recent head 64b7741. Consider uploading reports for the commit 64b7741 to get more accurate results

@@            Coverage Diff             @@
##             main    #2541      +/-   ##
==========================================
- Coverage   71.64%   71.58%   -0.06%     
==========================================
  Files          94       94              
  Lines        6464     6500      +36     
  Branches      738      770      +32     
==========================================
+ Hits         4631     4653      +22     
- Misses       1757     1771      +14     
  Partials       76       76              

Flag	Coverage Δ
frontend	71.58% <61.11%> (-0.06%)	⬇️
javascript	71.58% <61.11%> (-0.06%)	⬇️
smokeTestAnnotations	?
unitTest	71.58% <61.11%> (-0.06%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
server/common/config/dataset_config.py	77.95% <22.22%> (-1.73%)	⬇️
client/src/annoMatrix/viewCreators.js	73.91% <100.00%> (+1.18%)	⬆️
client/src/annoMatrix/whereCache.js	100.00% <100.00%> (ø)
client/src/util/typedCrossfilter/crossfilter.js	92.61% <0.00%> (-1.12%)	⬇️
client/src/util/actionHelpers.js	76.27% <0.00%> (-0.93%)	⬇️
client/src/util/typedCrossfilter/bitArray.js	77.18% <0.00%> (-0.91%)	⬇️
client/src/util/stateManager/matrix.js	85.84% <0.00%> (-0.65%)	⬇️
client/src/util/typedCrossfilter/sort.js	89.17% <0.00%> (-0.51%)	⬇️
client/src/util/stateManager/colorHelpers.js	47.47% <0.00%> (-0.49%)	⬇️
...ent/__tests__/util/stateManager/sampleResponses.js	100.00% <0.00%> (ø)
... and 5 more

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