Apply gl-button class to sherlock/file_samples

app/views/sherlock/file_samples/show.html.haml

@@ -5,7 +5,7 @@
 
 .row-content-block
   .float-right
-    = link_to(sherlock_transaction_path(@transaction), class: 'btn') do
+    = link_to(sherlock_transaction_path(@transaction), class: 'btn gl-button') do
       = sprite_icon('arrow-left')
       = t('sherlock.transaction')
   .oneline

changelogs/unreleased/-231208-sherlock-file_samples.yml

+---
+title: Apply GitLab UI button styles to buttons in app/views/sherlock/file_samples
+merge_request: 44109
+author: Lakshit
+type: other