Bug 1924170 - Follow up whitespace fix on browser.toml file. rs=bustage-fix DONTBUILD

mail/components/customizableshortcuts/test/browser/browser.toml

@@ -1,14 +1,14 @@
-[DEFAULT]
-head = "head.js"
-prefs = [
-  "mail.provider.suppress_dialog_on_startup=true",
-  "mail.spellcheck.inline=false",
-  "mail.spotlight.firstRunDone=true",
-  "mail.winsearch.firstRunDone=true",
-  "mailnews.database.global.indexer.enabled=false",
-  "mailnews.start_page.override_url=about:blank",
-  "mailnews.start_page.url=about:blank",
-]
-subsuite = "thunderbird"
-
-["browser_shortcutsContainer.js"]
+[DEFAULT]
+head = "head.js"
+prefs = [
+  "mail.provider.suppress_dialog_on_startup=true",
+  "mail.spellcheck.inline=false",
+  "mail.spotlight.firstRunDone=true",
+  "mail.winsearch.firstRunDone=true",
+  "mailnews.database.global.indexer.enabled=false",
+  "mailnews.start_page.override_url=about:blank",
+  "mailnews.start_page.url=about:blank",
+]
+subsuite = "thunderbird"
+
+["browser_shortcutsContainer.js"]