Various Dark Theme fixes per QA feedback (#1212)

* Fix CORS issue on in-line theming javascript

* Fix date picker icon color

* Add comment

* Fix table theming in dark mode

* Selfhosted navbar fix

* Rename selector to avoid clashing with bootstrap

* Do not set initial theme if default

* Fix .text-danger style in dropdown lists

* Fix toast style, restructure toast and card scss

* Fix table and dropdown list hover color

* Use callout component for Disable Send warning

* Remove unneeded theming for hovering over links

* Undo changes to register enterprise2 layout

* Apply theming to Safari input field icons

e.g. Caps lock, password autofill

* Selectively apply themed logo CSS

* Fix unrelated linting

* Fix webpack config to bundle theme.js

Co-authored-by: Danny Murphy <6512845+dltmurphy@users.noreply.github.com>

src/scss/plugins.scss

@@ -129,15 +129,15 @@
     }
 
     .swal2-icon {
+        border: none;
+        height: auto;
         margin: 0 auto;
         width: auto;
-        height: auto;
-        border: none;
     }
 
     .swal2-content {
-        padding-bottom: 15px;
         font-size: $font-size-base;
+        padding-bottom: 15px;
         @include themify($themes) {
             border-bottom: $modal-footer-border-width solid themed('separator');
         }
@@ -145,8 +145,8 @@
 
     i.swal-custom-icon {
         display: block;
-        margin: 0 auto;
         font-size: 35px;
+        margin: 0 auto;
     }
 
     .swal2-title {