[WebProfilerBundle] Remove usage of app.request in search bar template
bug #12575 [WebProfilerBundle] Remove usage of app.request in search bar template (jeromemacias)

This PR was merged into the 2.6 branch.

Discussion
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[WebProfilerBundle] Remove usage of app.request in search bar template

This PR removes the last usage of the global Twig variable `app.request` in Symfony.

| Q             | A
| ------------- | ---
| Bug fix?      | kinda
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| License       | MIT

Commits
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d3451fc [WebProfilerBundle] Remove usage of app.request in search bar template