Fix error in quickstart when ss not installed #3151

[greenape]

Closes #3151

I have:

• [ ] Formatted any Python files with black
• [x] Brought the branch up to date with master
• [x] Added any relevant Github labels
• [ ] Added tests for any new additions
• [ ] Added or updated any relevant documentation
• [ ] Added an Architectural Decision Record (ADR), if appropriate
• [ ] Added an MPLv2 License Header if appropriate
• [x] Updated the Changelog

Description

Quickstart script now checks which of ss and netstat is available without making a fuss if ss isn't.

[cypress[bot]]

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Test summary

43 • 0 • 0 • 0 • 0

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Run details

Project	FlowAuth
Status	Passed
Commit	04f8acb13a
Started	Nov 7, 2022 12:52 PM
Ended	Nov 7, 2022 1:03 PM
Duration	10:53 💡
OS	Linux Debian - 10.5
Browser	Electron 100

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[codecov[bot]]

Codecov Report

Merging #4448 (c935dbe) into master (6d76f88) will decrease coverage by 0.28%. The diff coverage is n/a.

:exclamation: Current head c935dbe differs from pull request most recent head 04f8acb. Consider uploading reports for the commit 04f8acb to get more accurate results

@@            Coverage Diff             @@
##           master    #4448      +/-   ##
==========================================
- Coverage   94.22%   93.93%   -0.29%     
==========================================
  Files         269      276       +7     
  Lines       10284    10641     +357     
  Branches      916     1280     +364     
==========================================
+ Hits         9690     9996     +306     
- Misses        457      517      +60     
+ Partials      137      128       -9     

Impacted Files	Coverage Δ
...ine/core/server/query_schemas/visited_most_days.py	60.00% <0.00%> (-35.84%)	:arrow_down:
...wmachine/core/server/query_schemas/displacement.py	70.00% <0.00%> (-26.30%)	:arrow_down:
...core/server/query_schemas/unique_visitor_counts.py	85.00% <0.00%> (-11.67%)	:arrow_down:
...achine/core/server/query_schemas/modal_location.py	92.30% <0.00%> (-7.70%)	:arrow_down:
flowapi/flowapi/query_endpoints.py	87.35% <0.00%> (-2.30%)	:arrow_down:
flowmachine/flowmachine/features/location/flows.py	98.14% <0.00%> (-1.86%)	:arrow_down:
...machine/flowmachine/core/server/action_handlers.py	86.53% <0.00%> (-1.11%)	:arrow_down:
flowapi/flowapi/permissions.py	93.75% <0.00%> (-0.90%)	:arrow_down:
...e/server/query_schemas/joined_spatial_aggregate.py	96.07% <0.00%> (-0.29%)	:arrow_down:
flowmachine/flowmachine/core/table.py	93.02% <0.00%> (-0.09%)	:arrow_down:
... and 74 more

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