Standardised login tab order and evened card padding

Closes #1418

resources/assets/sass/_blocks.scss

@@ -192,7 +192,7 @@
 }
 @include smaller-than($xxl) {
   .content-wrap.card {
-    padding: $-l $-xl;
+    padding: $-m $-xl;
   }
 }
 @include smaller-than($m) {

resources/views/auth/forms/login/ldap.blade.php

@@ -15,5 +15,5 @@
 
 <div class="form-group">
     <label for="password">{{ trans('auth.password') }}</label>
-    @include('form.password', ['name' => 'password', 'tabindex' => 2])
+    @include('form.password', ['name' => 'password', 'tabindex' => 1])
 </div>

resources/views/auth/login.blade.php

@@ -27,7 +27,7 @@
                     </div>
 
                     <div class="text-right">
-                        <button class="button primary" tabindex="3">{{ title_case(trans('auth.log_in')) }}</button>
+                        <button class="button primary" tabindex="1">{{ title_case(trans('auth.log_in')) }}</button>
                     </div>
                 </div>
 
@@ -46,7 +46,7 @@
             @endif
 
             @if(setting('registration-enabled', false))
-                <div class="text-center">
+                <div class="text-center pb-s">
                     <hr class="my-l">
                     <a href="{{ baseUrl('/register') }}">{{ trans('auth.dont_have_account') }}</a>
                 </div>