Feat/webpack (#2998)

* First commit

* Removed govuk for webpack. Modernized javascript importing. Removed dead js

* Fixed tests, a few styling bugs

* Fixed some table errors and regenerated backstop ref images

* Updated tests for coverage

* Changes from carlo suggestions

app/assets/sass/uswds/_uswds-theme-custom-styles.scss

@@ -304,12 +304,19 @@ td.table-empty-message {
 
 .usa-hint {
   display: block;
+  color: color('gray-70');
 }
 
 .usa-table {
   th {
     border-bottom: 0 !important;
   }
+  td {
+    min-height: units(5);
+    div:empty::before {
+      content: '\00a0';
+    }
+  }
 }
 
 .js-stick-at-bottom-when-scrolling {
@@ -330,9 +337,32 @@ td.table-empty-message {
   margin: 0;
   border: 1px solid color('gray-cool-10');
   padding: units(2);
+  margin-bottom: units(2);
   &:focus {
     outline-offset: units(1);
   }
+  .js-stick-at-bottom-when-scrolling {
+    display: block;
+    .usa-form-group {
+      margin-bottom: 0;
+    }
+    fieldset {
+      margin-bottom: 0;
+    }
+    .usa-fieldset {
+      margin-top: 0;
+    }
+    .radios-nested {
+      .usa-radio {
+        margin-top: units(1);
+        max-width: units('mobile');
+      }
+    }
+    .page-footer {
+      margin-top: units(3);
+      margin-bottom: 0;
+    }
+  }
 }
 
 .spark-bar-bar {
@@ -732,10 +762,6 @@ details form {
 
 // Login page
 
-#countdown-container {
-  display: none; // Hide the countdown timer
-}
-
 .placeholder,
 .placeholder-conditional {
   background-color: #face00;

app/assets/sass/uswds/_uswds-theme.scss

@@ -9,6 +9,8 @@ in the form $setting: value,
 
 @use "uswds-core" with (
    $theme-font-type-sans: "public-sans",
+   $theme-font-path: "../fonts",
+   $theme-image-path: "../img",
    $theme-card-border-radius: 0,
    $theme-card-gap: 4,
    $theme-card-border-width: 2px,