feat: e opens a repo's SOPS or .env file, in nvim, sops edit or your editor

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

internal/ui/app/app_test.go

@@ -973,16 +973,16 @@ func TestSourcesFavouritesTab(t *testing.T) {
 func TestRebindingShowsEverywhere(t *testing.T) {
 	t.Parallel()
 	km := keys.Default()
-	if err := km.Apply(map[string]map[string][]string{"lists": {"reveal": {"e"}, "versions": {}}}); err != nil {
+	if err := km.Apply(map[string]map[string][]string{"lists": {"reveal": {"z"}, "versions": {}}}); err != nil {
 		t.Fatal(err)
 	}
 	d := newDriverOpts(t, Options{Keys: &km})
 	d.keys("3")
 	scr := d.screen()
-	if !strings.Contains(scr, "(e to reveal)") || strings.Contains(scr, "space to reveal") {
+	if !strings.Contains(scr, "(z to reveal)") || strings.Contains(scr, "space to reveal") {
 		t.Errorf("detail hint doesn't follow the binding:\n%s", scr)
 	}
-	if !strings.Contains(lastLine(scr), "e reveal/hide") {
+	if !strings.Contains(lastLine(scr), "z reveal/hide") {
 		t.Errorf("help bar: %q", lastLine(scr))
 	}
 	if strings.Contains(scr, "to browse") {
@@ -992,9 +992,9 @@ func TestRebindingShowsEverywhere(t *testing.T) {
 	if strings.Contains(d.screen(), "correct-horse") {
 		t.Error("space still reveals")
 	}
-	d.keys("e")
+	d.keys("z")
 	if !strings.Contains(d.screen(), "correct-horse-battery-staple") {
-		t.Errorf("e doesn't reveal:\n%s", d.screen())
+		t.Errorf("z doesn't reveal:\n%s", d.screen())
 	}
 }