Initial USWDS install

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

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+/*
+* * * * * ==============================
+* * * * * ==============================
+* * * * * ==============================
+* * * * * ==============================
+========================================
+========================================
+========================================
+----------------------------------------
+USWDS THEME CUSTOM STYLES
+----------------------------------------
+!! Copy this file to your project's
+   sass root. Don't edit the version
+   in node_modules.
+----------------------------------------
+Custom project SASS goes here.
+
+i.e.
+@include u-padding-right('05');
+----------------------------------------
+*/
+
+@use "uswds-core" as *;

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

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+/*
+----------------------------------------
+USWDS with settings overrides
+----------------------------------------
+Uncomment the following lines and add a list of changed settings
+in the form $setting: value,
+----------------------------------------
+*/
+
+//
+//  @use "uswds-core" with (
+//    $setting: value,
+//    $setting: value
+//  );
+//

app/assets/sass/uswds/styles.scss

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+@forward "uswds-theme";
+@forward "uswds";
+@forward "uswds-theme-custom-styles";