Shrink table font size to .9rem

for https://github.com/ebiwd/EBI-Icon-fonts/issues/8

css/ebi-css-build/_ebi_table_styles.scss

 @mixin ebi-table-styles {
   table {
     font-family: $table-font-family;
+    font-size: $table-font-size;
   }
   // padding for page content
   body.table-layout table {

css/ebi-css-build/_ebi_theme_settings.scss

@@ -42,6 +42,7 @@ $body-font-family: 'Fira Sans', Helvetica, Arial, sans-serif;
 $body-font-family-serif: 'EB Garamond', 'georgia', serif;
 $code-font-family: 'Fira Code', Consolas, 'Liberation Mono', Courier, monospace;
 $table-font-family: $code-font-family;
+$table-font-size: 0.9rem;
 
 // Set foundation colours
 $foundation-palette: (