revert: "fix(webapp): bind to localhost instead of 0.0.0.0"

[ReenigneArcher]

Reverts #491

This breaks bridge networking in docker.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
1 Accepted issue

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 60.09%. Comparing base (99d29db) to head (5b71cad).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #492   +/-   ##
=======================================
  Coverage   60.09%   60.09%           
=======================================
  Files          25       25           
  Lines        1812     1812           
=======================================
  Hits         1089     1089           
  Misses        723      723           

Files with missing lines	Coverage Δ
src/common/webapp.py	96.94% <ø> (ø)