Fix sass quoted string interpolation for hugo 0.110.0 (#1566)

* fix for #1378 to fix sass quoted string interpolation for hugo 0.110.0

* Adds quotes to the scss.hbs file so it reflects what is in font/bootstrap-icons.scss

* Update bootstrap-icons.scss

* Putting the fix, adding quotes around the -icons-font-file variable, back after it was removed by ea46c090fa

* The font/bootstrap-icons.scss is auto generated, so changes should not be made manually.

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Co-authored-by: XhmikosR <xhmikosr@gmail.com>

build/font/scss.hbs

@@ -6,7 +6,7 @@
 
 ${{ name }}-font: "{{ name }}" !default;
 ${{ name }}-font-dir: "{{ fontsUrl }}" !default;
-${{ name }}-font-file: #{${{ name }}-font-dir}/#{${{ name }}-font} !default;
+${{ name }}-font-file: "#{${{ name }}-font-dir}/#{${{ name }}-font}" !default;
 ${{ name }}-font-hash: "24e3eb84d0bcaf83d77f904c78ac1f47" !default;
 ${{ name }}-font-src: url("#{${{ name }}-font-file}.woff2?#{${{ name }}-font-hash}") format("woff2"),
                            url("#{${{ name }}-font-file}.woff?#{${{ name }}-font-hash}") format("woff") !default;