Clarify PR merge action labels (#1608)

* fix: disambiguate merge PR action labels (squash/merge/rebase)

* Clarify PR merge method labels

* Address merge label review feedback

---------

Co-authored-by: Matt Cowger <matt@cowger.us>

packages/app/src/i18n/resources/en.ts

@@ -603,16 +603,16 @@ export const en = {
           success: "Archived",
         },
         mergePr: {
-          squash: "Merge",
-          merge: "Merge",
-          rebase: "Merge",
+          squash: "Merge PR (squash)",
+          merge: "Merge PR (merge)",
+          rebase: "Merge PR (rebase)",
           pending: "Merging PR...",
           success: "PR merged",
         },
         autoMerge: {
-          enableSquash: "Auto merge",
-          enableMerge: "Auto merge",
-          enableRebase: "Auto merge",
+          enableSquash: "Auto merge (squash)",
+          enableMerge: "Auto merge (merge)",
+          enableRebase: "Auto merge (rebase)",
           enabled: "Auto-merge enabled",
           enabling: "Enabling auto-merge...",
           disabling: "Disabling auto-merge...",