add support for Vietnamese (vi) locale

closes FOO-2653
flag = none

test plan:
• compile assets and ensure Rails and Webpack are ran with
  the following ENV variable: RAILS_LOAD_ALL_LOCALES=1
• change your language via profile/course/account to:
   • Vietnamese (Tiếng Việt)
• verify _most_ _all_ strings are being translated properly
• see the following URLs for helpful guides:
  • https://github.com/bigeasy/timezone/blob/master/src/locales/vi_VN.js
  • https://en.wikipedia.org/wiki/Date_and_time_notation_in_Vietnam
• verify the RCE is localized
• verify assignment edit date picker (JQuery) works as expected
   • selecting specific days, hours/minutes, and typing
• verify we're formatting the numbers as expected by punching in a
  large number into "Points"
• verify the assignment index date picker(React) is localized
• go to calendar and verify the month/day names look appropriate
  for the Vietnamese locale

Change-Id: Id3bcd04f780fc1761fa133f64480a33e3ccb0e4f
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/284920
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>
Reviewed-by: Charley Kline <ckline@instructure.com>
QA-Review: Charley Kline <ckline@instructure.com>
Product-Review: August Thornton <august@instructure.com>

config/locales/locales.yml

@@ -1796,6 +1796,60 @@ uk:
       delimiter: " "
       separator: ","
   proper_noun_singular_genitive: "%{noun}"
+vi:
+  locales:
+    vi: Tiếng Việt
+  bigeasy_locale: vi_VN
+  dow_offset: 1
+  date:
+    abbr_month_names:
+    -
+    - Tháng 1
+    - Tháng 2
+    - Tháng 3
+    - Tháng 4
+    - Tháng 5
+    - Tháng 6
+    - Tháng 7
+    - Tháng 8
+    - Tháng 9
+    - Tháng 10
+    - Tháng 11
+    - Tháng 12
+    formats:
+      date_at_time: "%-d %b tại %k:%M"
+      default: "%d/%m/%Y"
+      full: "%b %-d, %Y %k:%M"
+      full_with_weekday: "%a %b %-d, %Y %k:%M"
+      long: "%B %-d, %Y"
+      long_with_weekday: "%A, %B %-d"
+      medium: "%b %-d, %Y"
+      medium_month: "%b %Y"
+      medium_with_weekday: "%a %b %-d, %Y"
+      short: "%b %-d"
+      short_month: "%b"
+      short_weekday: "%a"
+      short_with_weekday: "%a, %b %-d"
+      weekday: "%A"
+  time:
+    event: "%{date} tại %{time}"
+    formats:
+      tiny: "%k:%M"
+      tiny_on_the_hour: "%k:%M"
+  number:
+    currency:
+      format:
+        delimiter: ","
+        separator: "."
+    format:
+      delimiter: ","
+      separator: "."
+  helpers:
+    accessible_date_only_format: "DD/MM/YYYY"
+    accessible_date_format: "hh:mm DD/MM/YYYY"
+  # this is for accessibleDateFormat.js
+  yyyy_mm_dd_hh_mm_a01b6081: "hh:mm DD/MM/YYYY"
+  proper_noun_singular_genitive: "của %{noun}"
 zh-Hans:
   aliases: zh-CN
   bigeasy_locale: zh_CN

config/locales/vi.rb

@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+#
+# Copyright (C) 2022 - present Instructure, Inc.
+#
+# This file is part of Canvas.
+#
+# Canvas is free software: you can redistribute it and/or modify it under
+# the terms of the GNU Affero General Public License as published by the Free
+# Software Foundation, version 3 of the License.
+#
+# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Affero General Public License along
+# with this program. If not, see <http://www.gnu.org/licenses/>.
+
+{
+  vi: {
+    number: {
+      nth: {
+        ordinals: lambda do |_key, _options|
+          "thứ "
+        end,
+
+        ordinalized: lambda do |_key, options|
+          number = options[:number]
+          "#{number}#{ActiveSupport::Inflector.ordinal(number)}"
+        end
+      }
+    }
+  }
+}