Client - add 404 error page

fittrackee_client/src/locales/en/common.json

@@ -0,0 +1,3 @@
+{
+  "HOME": "Home"
+}

fittrackee_client/src/locales/en/en.ts

@@ -1,12 +1,16 @@
 import AdministrationTranslations from './administration.json'
+import CommonTranslations from './common.json'
 import DashboardTranslations from './dashboard.json'
+import ErrorTranslations from './error.json'
 import StatisticsTranslations from './statistics.json'
 import UserTranslations from './user.json'
 import WorkoutsTranslations from './workouts.json'
 
 export default {
   administration: AdministrationTranslations,
+  common: CommonTranslations,
   dashboard: DashboardTranslations,
+  error: ErrorTranslations,
   statistics: StatisticsTranslations,
   user: UserTranslations,
   workouts: WorkoutsTranslations,

fittrackee_client/src/locales/en/error.json

@@ -0,0 +1,5 @@
+{
+  "not-found": {
+    "PAGE": "Page not found"
+  }
+}