Update homepage to show only subscribed projects

[kfdm]

• Home page shows only the services that you are subscribed to
• TODO: Handle empty set

[codecov-io]

Codecov Report

Merging #105 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #105      +/-   ##
==========================================
- Coverage   43.76%   43.76%   -0.01%     
==========================================
  Files          35       35              
  Lines        2230     2237       +7     
==========================================
+ Hits          976      979       +3     
- Misses       1254     1258       +4

Impacted Files	Coverage Δ
views.py	43.87% <0%> (-0.01%)	⬇️

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