Added ability to select language in settings

Fixed locale support so that it actually works at runtime

Removed unused library

src/app/settings/settings.component.ts

@@ -1,5 +1,7 @@
 import { Component, OnInit } from '@angular/core';
 import { PostsService } from 'app/posts.services';
+import { isoLangs } from './locales_list';
+import { MatSnackBar } from '@angular/material/snack-bar';
 
 @Component({
   selector: 'app-settings',
@@ -7,12 +9,15 @@ import { PostsService } from 'app/posts.services';
   styleUrls: ['./settings.component.scss']
 })
 export class SettingsComponent implements OnInit {
+  all_locales = isoLangs;
+  supported_locales = ['en', 'es'];
+  initialLocale = localStorage.getItem('locale');
 
   initial_config = null;
   new_config = null
   loading_config = false;
 
-  constructor(private postsService: PostsService) { }
+  constructor(private postsService: PostsService, private snackBar: MatSnackBar) { }
 
   ngOnInit() {
     this.getConfig();
@@ -46,4 +51,16 @@ export class SettingsComponent implements OnInit {
     })
   }
 
+  localeSelectChanged(new_val) {
+    localStorage.setItem('locale', new_val);
+    this.openSnackBar('Language successfully changed! Reload to update the page.')
+  }
+
+  // snackbar helper
+  public openSnackBar(message: string, action: string = '') {
+    this.snackBar.open(message, action, {
+      duration: 2000,
+    });
+  }
+
 }