refs #1997 Add Sinhala in i18n

spec/config/i18n.spec.ts

@@ -2,7 +2,7 @@ import * as path from 'path'
 import fs from 'fs'
 import keys from 'all-object-keys'
 
-const locales = ['de', 'fr', 'it', 'ja', 'ko', 'pl', 'zh_cn', 'zh_tw']
+const locales = ['de', 'fr', 'it', 'ja', 'ko', 'pl', 'it', 'zh_cn', 'zh_tw', 'cs', 'es_es', 'no', 'pt_pt', 'ru', 'si', 'sv_se', 'tzm']
 
 describe('i18n', () => {
   describe('should not define duplicate keys', () => {

src/config/i18n.ts

@@ -12,6 +12,7 @@ import pl from '~/src/config/locales/pl/translation.json'
 import pt_pt from '~/src/config/locales/pt_pt/translation.json'
 import ru from '~/src/config/locales/ru/translation.json'
 import sv_se from '~/src/config/locales/sv_se/translation.json'
+import si from '~/src/config/locales/si/translation.json'
 import tzm from '~/src/config/locales/tzm/translation.json'
 import zh_cn from '~/src/config/locales/zh_cn/translation.json'
 import zh_tw from '~/src/config/locales/zh_tw/translation.json'
@@ -58,6 +59,9 @@ const options: InitOptions = {
     ru: {
       translation: ru
     },
+    si: {
+      translation: si
+    },
     sv_se: {
       translation: sv_se
     },

src/constants/language/index.d.ts

@@ -4,13 +4,23 @@ export type LanguageType = {
 }
 
 export type LanguageList = {
-  de: LanguageType,
-  en: LanguageType,
-  fr: LanguageType,
-  ja: LanguageType,
-  ko: LanguageType,
-  pl: LanguageType,
+  de: LanguageType
+  en: LanguageType
+  fr: LanguageType
+  ja: LanguageType
+  ko: LanguageType
+  pl: LanguageType
   it: LanguageType
+  zh_cn: LanguageType
+  zh_tw: LanguageType
+  cs: LanguageType
+  es_es: LanguageType
+  no: LanguageType
+  pt_pt: LanguageType
+  ru: LanguageType
+  si: LanguageType
+  sv_se: LanguageType
+  tzm: LanguageType
 }
 
 declare let l: LanguageList

src/constants/language/index.js

@@ -55,6 +55,10 @@ export default {
     name: 'русский',
     key: 'ru'
   },
+  si: {
+    name: 'සිංහල',
+    key: 'si'
+  },
   sv_se: {
     name: 'svenska',
     key: 'sv_se'

src/renderer/components/Preferences/Language.vue

@@ -32,6 +32,7 @@ export default {
         Language.pl,
         Language.pt_pt,
         Language.ru,
+        Language.si,
         Language.sv_se,
         Language.tzm,
         Language.zh_cn,