refactor: replace inspect() with meta.inspect() and variable-exists() with meta.variable-exists()

Author: mrholek

scss/_root.scss

@@ -1,3 +1,4 @@
+@use "sass:meta";
 @use "variables" as *;
 @use "variables-dark" as *;
 @use "maps" as *;
@@ -46,18 +47,18 @@
 
   // Fonts
 
-  // Note: Use `inspect` for lists so that quoted items keep the quotes.
+  // Note: Use `meta.inspect` for lists so that quoted items keep the quotes.
   // See https://github.com/sass/sass/issues/2383#issuecomment-336349172
-  --#{$prefix}font-sans-serif: #{inspect($font-family-sans-serif)};
-  --#{$prefix}font-monospace: #{inspect($font-family-monospace)};
+  --#{$prefix}font-sans-serif: #{meta.inspect($font-family-sans-serif)};
+  --#{$prefix}font-monospace: #{meta.inspect($font-family-monospace)};
   --#{$prefix}gradient: #{$gradient};
 
   // Root and body
   // scss-docs-start root-body-variables
   @if $font-size-root != null {
     --#{$prefix}root-font-size: #{$font-size-root};
   }
-  --#{$prefix}body-font-family: #{inspect($font-family-base)};
+  --#{$prefix}body-font-family: #{meta.inspect($font-family-base)};
   @include rfs($font-size-base, --#{$prefix}body-font-size);
   --#{$prefix}body-font-weight: #{$font-weight-base};
   --#{$prefix}body-line-height: #{$line-height-base};

scss/mixins/_grid.scss

@@ -1,4 +1,5 @@
 @use "sass:map";
+@use "sass:meta";
 @use "../variables" as *;
 @use "../maps" as *;
 @use "../functions/math" as *;
@@ -22,7 +23,7 @@
 
 @mixin make-col-ready($include-column-box-sizing: false) {
   // Add box sizing if only the grid is loaded
-  box-sizing: if(variable-exists(include-column-box-sizing) and $include-column-box-sizing, border-box, null);
+  box-sizing: if(meta.variable-exists(include-column-box-sizing) and $include-column-box-sizing, border-box, null);
   // Prevent columns from becoming too narrow when at smaller grid tiers by
   // always setting `width: 100%;`. This works because we set the width
   // later on to override this initial width.