Change file input language

If my browser has Polish language then file input has Polish language
too. However I would expect English language like whole app.
More details: https://github.com/openbmc/webui-vue/issues/20

Signed-off-by: Mateusz Gapski <mateuszx.gapski@intel.com>
Change-Id: I20119fdd29686e1a4e6bed9ddd78a0e559afc694
diff --git a/src/locales/en-US.json b/src/locales/en-US.json
index 8733ea9..023efa5 100644
--- a/src/locales/en-US.json
+++ b/src/locales/en-US.json
@@ -27,6 +27,11 @@
       "openDatePicker": "Open date picker",
       "useCursorKeysToNavigateCalendarDates": "Use cursor keys to navigate calendar dates"
     },
+    "fileUpload": {
+      "browseText": "Browse",
+      "dropPlaceholder": "Drop files here",
+      "placeholder": "No file selected"
+    },
     "form": {
       "dateMustBeAfter": "Date must be after %{date}",
       "dateMustBeBefore": "Date must be before %{date}",