Revert of [Template Expressions] changing ${ leader to $i18n{

ui/webui/resources/css/text_defaults.css

Index: ui/webui/resources/css/text_defaults.css
diff --git a/ui/webui/resources/css/text_defaults.css b/ui/webui/resources/css/text_defaults.css
index 45587827b562e9de5e1b0e642b488d3189a41ea7..037ade7efb1ba8ba3cf1594976eff8b7f2822e3f 100644
--- a/ui/webui/resources/css/text_defaults.css
+++ b/ui/webui/resources/css/text_defaults.css
@@ -16,14 +16,14 @@
  * Otherwise its $placeholders won't be expanded. */
 
 html {
-  direction: $i18n{textDirection};
+  direction: ${textDirection};
 }
 
 body {
-  font-family: $i18n{fontFamily};
-  font-size: $i18n{fontSize};
+  font-family: ${fontFamily};
+  font-size: ${fontSize};
 }
 
 button {
-  font-family: $i18n{fontFamily};
+  font-family: ${fontFamily};
 }