Fixed wrong AppSubUrl in multiple templates

[philippbeckmann]

When run behind a reverse proxy in a sub-path, an oauth2 application can be added, but not edited.

This is because the $.AppSubURL in the form-action of the edit template does not include the sub-path. I replaced it with AppSubUrl, which includes it.

PS: The template files \templates\explore\code.tmpl and \templates\repo\settings\lfs_locks.tmpl also utilize $.AppSubURL, which might fail in this configuration.

[6543]

CI failure looks unrelated ...
@philippbeckmann cant find this in \templates\repo\settings\lfs_locks.tmpl but can you change code.tmpl too?

[philippbeckmann]

@6543 I replaced the other occurences of $.AppSubURL in the mentioned files.

[codecov-io]

Codecov Report

Merging #10447 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #10447      +/-   ##
==========================================
+ Coverage   43.68%   43.69%   +0.01%     
==========================================
  Files         586      586              
  Lines       81389    81389              
==========================================
+ Hits        35552    35566      +14     
+ Misses      41433    41424       -9     
+ Partials     4404     4399       -5

Impacted Files	Coverage Δ
services/pull/temp_repo.go	29.05% <0%> (-2.57%)	⬇️
services/pull/patch.go	60.37% <0%> (-2.52%)	⬇️
modules/queue/unique_queue_disk_channel.go	53.84% <0%> (-1.93%)	⬇️
models/gpg_key.go	54.81% <0%> (-0.56%)	⬇️
models/error.go	29.23% <0%> (+0.51%)	⬆️
services/pull/pull.go	36.07% <0%> (+0.87%)	⬆️
modules/git/repo.go	47.7% <0%> (+0.91%)	⬆️
services/pull/check.go	53.04% <0%> (+2.43%)	⬆️
modules/git/command.go	89.56% <0%> (+2.6%)	⬆️
modules/process/manager.go	78.31% <0%> (+3.61%)	⬆️
... and 3 more

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[jolheiser]

Ping lgtm