Include sub-techniques in auto-filtering

[initstring]

TTP Mapping will automatically sort relevant TTPs when you select a tactic. However, that sorting is missing sub techniques.

As an example, here is a screenshot from the public ATT&CK Flow Builder instance.

Here is an example from a build running within this PR:

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.08%. Comparing base (0303e4c) to head (10307a6).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #148   +/-   ##
=======================================
  Coverage   99.08%   99.08%           
=======================================
  Files           9        9           
  Lines         981      981           
=======================================
  Hits          972      972           
  Misses          9        9           

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