feat(main): Add base theme: This is the falcon theme out of the box.

This is falcon v3.1.2

_dev/css/theme/components/cart/_blockcart.scss

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+.blockcart {
+  &__dropdown {
+    width: rem-calc(320px);
+    min-width: inherit;
+    padding: 0;
+    margin: 0;
+    overflow: hidden;
+    border: 1px solid $border-color;
+    border-radius: $border-radius;
+  }
+}

_dev/css/theme/components/cart/_cart-dropdown.scss

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+@use "sass:map";
+
+.cart-dropdown {
+  &__content {
+    padding: map.get($spacers, 2) map.get($spacers, 3) map.get($spacers, 3);
+  }
+
+  &__products {
+    border-top: 1px solid $border-color;
+    border-bottom: 1px solid $border-color;
+    max-height: rem-calc(400px);
+    overflow-x: hidden;
+    overflow-y: auto;
+  }
+
+  &__close {
+    font-size: rem-calc(22px);
+    color: $gray-600;
+
+    &:hover,
+    &:focus {
+      color: $black;
+    }
+  }
+}

_dev/css/theme/components/cart/_cart-loader.scss

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+.cart-loader {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  z-index: 10;
+  display: none;
+  align-items: center;
+  justify-content: center;
+  background: rgba($white, 0.5);
+
+  .cart-loading & {
+    display: flex;
+  }
+}

_dev/css/theme/components/cart/_cart-products.scss

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+@use "sass:map";
+
+.cart-products {
+  display: flex;
+  padding-bottom: map.get($spacers, 3);
+
+  &:not(:first-child) {
+    padding-top: map.get($spacers, 3);
+    border-top: 1px solid $border-color;
+  }
+
+  &__thumb {
+    @include custom-col(rem-calc(80px));
+    padding-right: map.get($spacers, 2);
+  }
+
+  &__desc {
+    flex: 1 1;
+    padding-right: map.get($spacers, 2);
+  }
+
+  &__remove {
+    flex: 0 0;
+  }
+
+}

_dev/css/theme/components/cart/_cart-summary-line.scss

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+@use "sass:map";
+
+.cart-summary-line {
+  display: flex;
+  justify-content: space-between;
+  @include font-size($font-size-base);
+
+  &:not(:last-child) {
+    margin-bottom: map.get($spacers, 2);
+  }
+
+  &.cart-total {
+    @include font-size($font-size-lg);
+  }
+
+  .label {
+    margin-right: map.get($spacers, 2);
+  }
+
+  .value {
+    font-weight: 600;
+  }
+}

_dev/css/theme/components/cart/_index.scss

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+@import "blockcart";
+@import "cart-dropdown";
+@import "cart-products";
+@import "cart-loader";
+@import "cart-summary-line";