Dark Theme (#1017)

* Stylesheets

* Theme Configuration

* Options Area

* swal2 style

* Icon styling

* Fix theme not saving

* Update English

* Update messages.json

* dropdown and login logo

* btn-link and totp fix

* Organisation Styling

* Update webauthn-fallback.ts

* Fix contrast issues

* Add Paypal Container and Loading svg file

* Password Generator contrast fix

* Dark Mode Fix buttons and foreground

* Fix button hover

* Fix Styles after rebase

* Add hover on nav dropdown-item

* Disable Theme Preview

* Options Fix for Default Theme Changes

* Updated Colour Scheme

* Toast fix

* Button and Text Styling

* Options Update and Messages Fix

* Added Search Icon and Fixed Callout styling

* Add theme styling to Stripe

* Refactor logic for setting color

* Reorder logic to avoid race condition

* PayPal Loading and Misc Fix

* text-state bug fix

* Badge Colour Fix

* Remove PayPal Tagline

The colour cannot be styled so it's not visible on a dark theme

* Adding the Styling from #1131

* Update to New Design

* Form and Nav restyle

* Modal Opacity and Callout

* Nav Colours

* Missing Borders

* Light theme fix

* Improved border for listgroup

* Change Org Nav Colour

* Save theme to localStorage for persistence

* Undo change to Wired image

* !Important removal and tweaks

* Fix regression with navbar

* Light theme by default

* Refactor to use getEffectiveTheme

* Refactor theme constants to use enum

* Set theme in index.html before app loads

* Use scss selector to set logo image

* Export Sass to TS

* Update jslib

Co-authored-by: Thomas Rittson <trittson@bitwarden.com>

src/app/settings/options.component.html

@@ -72,7 +72,7 @@
         </div>
         <small class="form-text text-muted">{{'enableGravatarsDesc' | i18n}}</small>
     </div>
-	<div class="form-group">
+    <div class="form-group">
         <div class="form-check">
             <input class="form-check-input" type="checkbox" id="enableFullWidth" name="enableFullWidth"
                 [(ngModel)]="enableFullWidth">
@@ -82,6 +82,17 @@
         </div>
         <small class="form-text text-muted">{{'enableFullWidthDesc' | i18n}}</small>
     </div>
+    <div class="row">
+        <div class="col-6">
+            <div class="form-group">
+                <label for="theme">{{'theme' | i18n}}</label>
+                <select id="theme" name="theme" [(ngModel)]="theme" class="form-control">
+                    <option *ngFor="let o of themeOptions" [ngValue]="o.value">{{o.name}}</option>
+                </select>
+                <small class="form-text text-muted">{{'themeDesc' | i18n}}</small>
+            </div>
+        </div>
+    </div>
     <button type="submit" class="btn btn-primary">
         {{'save' | i18n}}
     </button>