Display multiple motds in CLI and deactivate old ones

[valyo]

Adds ls and deactivate subcommands to dds motd
and displaying of multiple active motds
works with ScilifelabDataCentre/dds_web#1212

Please include the following in this section

• Summary of the changes and the related issue
• Relevant motivation and context
• Any dependencies that are required for this change

Fixes DDS-1305

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

Please delete options that are not relevant.

• Any dependent changes have been merged and published in downstream modules
• Rebase/merge the branch which this PR is made to
• Product Owner / Scrum Master: This PR is made to the master branch and I have updated the version

Formatting and documentation

• I have added a row in the changelog
• The code follows the style guidelines of this project: Black / Prettier formatting
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

Tests

• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[i-oden]

This is to match the suggested change in the web part

[codecov]

Codecov Report

Merging #505 (8e18e21) into dev (9a95133) will increase coverage by 0.70%.
The diff coverage is 65.90%.

@@            Coverage Diff             @@
##              dev     #505      +/-   ##
==========================================
+ Coverage   41.44%   42.15%   +0.70%     
==========================================
  Files          29       29              
  Lines        2531     2567      +36     
==========================================
+ Hits         1049     1082      +33     
- Misses       1482     1485       +3     

Impacted Files	Coverage Δ
dds_cli/__main__.py	41.04% <40.00%> (-0.37%)	⬇️
dds_cli/motd_manager.py	100.00% <100.00%> (+25.00%)	⬆️
dds_cli/base.py	44.08% <0.00%> (+1.07%)	⬆️
dds_cli/exceptions.py	89.13% <0.00%> (+8.69%)	⬆️

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[i-oden]

@valyo Ok to merge this too? I altered it slightly in the beginning of the week.

[valyo]

@valyo Ok to merge this too? I altered it slightly in the beginning of the week.

sure, I already saw the changes