feat: use the raw homeserver URL instead of manually removing the scheme

[bnjbvr]

On the one hand, the SDK knows what to do and will clean up the URL if needs be, guessing what the best scheme (http or https) is based on the prefix. On the other hand, trimming the scheme as done here doesn't allow for manual testing on insecure servers, which is handy in e2e testing situations.

[codecov]

Codecov Report

Patch coverage: 50.00% and no project coverage change.

Comparison is base (d784ca3) 57.78% compared to head (ffb1302) 57.78%.
Report is 5 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1382   +/-   ##
========================================
  Coverage    57.78%   57.78%           
========================================
  Files         1124     1124           
  Lines        29593    29591    -2     
  Branches      6032     6030    -2     
========================================
  Hits         17100    17100           
  Misses        9912     9912           
+ Partials      2581     2579    -2     

Files Changed	Coverage Δ
...s/login/impl/changeserver/ChangeServerPresenter.kt	80.00% <0.00%> (+3.80%)	⬆️
...accountprovider/ConfirmAccountProviderPresenter.kt	89.47% <100.00%> (+1.54%)	⬆️

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[bmarty]

LGTM, thanks. Not sure why we try to extract the domain from the url. Maybe influenced by the parameter name of configureHomeserver. This is serverNameOrHomeserverUrl now, but I think it was something else before.