Add Chromium Canary target

The mv3 variant will be used for this target, to start testing it.

Bug: translateselectedtext:10
Change-Id: I0bc5d715d03b2ef9a7514e107d56c66703f05060
diff --git a/src/static/_locales/en/messages.json b/src/static/_locales/en/messages.json
index 07ffcfb..d8bd3cf 100644
--- a/src/static/_locales/en/messages.json
+++ b/src/static/_locales/en/messages.json
@@ -7,6 +7,10 @@
 		"message": "Translate Selected Text (Beta)",
 		"description": "The beta app name"
 	},
+  "appCanaryName": {
+		"message": "Translate Selected Text (Canary)",
+		"description": "The beta app name"
+	},
 	"appDescription": {
 		"message": "Translate selected text with Google Translate",
 		"description": "The app description"