Hide project name if searching against a project

app/views/search/results/_commit.html.haml

-= render 'projects/commits/commit', project: commit.project, commit: commit, ref: nil, show_project_name: true
+= render 'projects/commits/commit', project: commit.project, commit: commit, ref: nil, show_project_name: @project.nil?

changelogs/unreleased/unify-views-search-results.yml

+---
+title: Hide project name if searching against a project
+merge_request: 19595
+author:
+type: changed