Always use ctx.Locale.Tr inside templates

[delvh]

Refactoring performed using

cd templates/
ag --only-matching --nofilename '[^{()\s]+\.Tr\b' | sed 's/ //g' | uniq --unique | sort -h | uniq --unique

 # Then pipe into vim, execute ':sort u', throw out `ctx.Locale.Tr`, and save as '../bad-instances'

for bad_instance in $(cat ../bad-instances); do
  echo $bad_instance;
  for file in $(ag --literal --files-with-matches "$bad_instance") ; do
    vim "$file" -c ":%s/\(\<\)\?$bad_instance\(\>\)\?/\1ctx.Locale.Tr\2" -c ':wq' ;
  done;
done

# Edge cases that are not covered by above
for file in $(ag --files-with-matches -Q '$ctx.Locale.Tr') ; do vim $file -c ':%s/\$ctx\.Locale\.Tr/ctx\.Locale\.Tr/g' -c ':wq'; done
git checkout da0467e3b -- ./status/500.tmpl
for file in $(ag --files-with-matches -Q '$.rootctx.Locale.Tr') ; do vim $file -c ':%sno/$.rootctx.Locale.Tr/ctx.Locale.Tr/g' -c ':wq'; done
for file in $(ag --files-with-matches -Q  '.rootctx.Locale.Tr') ; do vim $file -c ':%sno/.rootctx.Locale.Tr/ctx.Locale.Tr/g' -c ':wq'; done
for file in $(ag --files-with-matches -Q  '.ctxDatactx.Locale.Tr') ; do vim $file -c ':%sno/.ctxDatactx.Locale.Tr/ctx.Locale.Tr/g' -c ':wq'; done

This PR is a corollary to #27227 as that PR removes the unneeded locale parameters from subtemplates.

[wxiaoguang]

500.tmpl is special, it can't use ctx at the moment.

[delvh]

Done

[denyskon]

I didn't go through all files, but it looks good to me in general. I think we should merge, and fix possible issues when they appear. Thanks @delvh

[delvh]

Hmm… Is the current CI failure related to my changes or not?
I'm rather leaning towards unrelated.

[denyskon]

Looks related to me.... the few tests I looked at refer to some text inside pages, or http errors... looks like broken templates

[delvh]

Found the culprit.
Am currently fixing it.

[delvh]

Okay, now I am confused:
According to the CI, my changes appear to be responsible for the failure.
However, I cannot reproduce the 500 locally.
I cannot even find a template that is called by the respective method.
So, I have no idea what is going wrong here.
Does anyone else have an idea?

[denyskon]

@delvh It's the mail template under templates/mail/team_invite.tmpl.
It doesn't seem to work with ctx.Locale.Tr. When changing back to .locale.Tr, the tests pass

[silverwind]

lgtm after ci passes

[GiteaBot]

I was unable to create a backport for 1.21. @delvh, please send one manually. 🍵

go run ./contrib/backport 27231
...  // fix git conflicts if any
go run ./contrib/backport --continue

[wxiaoguang]

-> Backport ctx locale refactoring manually #27260