fix starter for demo modules

[emjay0921]

Why is this change needed?

To fix the error when using spp_starter for demo.

How was the change implemented?

Added spp_base_demo and renamed spp_demo to spp_mis_demo.

New unit tests

None

Unit tests executed by the author

None

How to test manually

• On newly set instance or runboat install spp_starter.
• Proceed with the setup. (Try with SP-MIS and Farmer Registry, also make sure to test this as demo)
• If proceeded with no error then PR is done.

Related links

#660

[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 72.30%. Comparing base (ba02c29) to head (658ae31).
Report is 222 commits behind head on 17.0.

Files with missing lines	Patch %	Lines
spp_starter/wizards/spp_starter.py	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             17.0     #661      +/-   ##
==========================================
- Coverage   76.28%   72.30%   -3.98%     
==========================================
  Files         571      649      +78     
  Lines       14812    17177    +2365     
  Branches     1861     2236     +375     
==========================================
+ Hits        11299    12420    +1121     
- Misses       3140     4363    +1223     
- Partials      373      394      +21     

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