Sorting in tables seems wrong

[TwizzyDizzy]

Describe the bug

The sorting seems to be wrong, as illustrated by the following screenshots of the fact uptime:

Puppetboard version

4.1.2

Environment and installation method

• CentOS 8 Stream, Python 3.9
• Installed via PyPI (but not via the Puppetboard Puppet module)

settings.py

      import os

      PUPPETDB_HOST = '%{facts.networking.fqdn}'
      PUPPETDB_PORT = 8081
      PUPPETDB_SSL_VERIFY = '/etc/puppetlabs/puppet/ssl/certs/ca.pem'
      PUPPETDB_KEY = '/opt/puppetboard-venv/private.pem'
      PUPPETDB_CERT = '/opt/puppetboard-venv/public.pem'
      PUPPETDB_TIMEOUT = 20
      DEFAULT_ENVIRONMENT = '*'
      SECRET_KEY = '***'
      DEV_LISTEN_HOST = '127.0.0.1'
      DEV_LISTEN_PORT = 5000
      DEV_COFFEE_LOCATION = 'coffee'
      UNRESPONSIVE_HOURS = 24
      ENABLE_QUERY = True
      LOCALISE_TIMESTAMP = True
      LOGLEVEL = 'debug'
      NORMAL_TABLE_COUNT = 250
      LITTLE_TABLE_COUNT = 50
      TABLE_COUNT_SELECTOR = [10, 25, 50, 100, 250, 500, 1000]
      OFFLINE_MODE = True
      ENABLE_CATALOG = True
      OVERVIEW_FILTER = None
      GRAPH_TYPE = 'donut'
      FAVORITE_ENVS = ['production','test','development']
      GRAPH_FACTS = ['architecture',
                     'clientversion',
                     'domain',
[...]
                     'sudoversion',
                     'tier' ]
      INVENTORY_FACTS = [('Hostname', 'fqdn'),
                         ('IP Address', 'ipaddress'),
                         ('OS', 'operatingsystem'),
                         ('OS-Release', 'operatingsystemrelease'),
                         ('Architecture', 'hardwaremodel'),
                         ('Kernel Version', 'kernelrelease'),
                         ('Puppet Version', 'puppetversion'), ]
      REFRESH_RATE = 30
      DAILY_REPORTS_CHART_ENABLED = True
      DAILY_REPORTS_CHART_DAYS = 8
      SHOW_ERROR_AS = 'friendly'
      CODE_PREFIX_TO_REMOVE = '/etc/puppetlabs/code/environments'

[TwizzyDizzy]

Ugh. A colleague of mine just made me aware of the fact, that indeed, the uptime_days fact, which contains only integers, gets sorted correctly, so this must be natural sorting due to the fact uptime being strings and not integers.

Sorry for the fuzz.

Cheers
Thomas