Add style for default kind in ProgressBar

(cherry picked from commit 4ab1cb393ac682cb06625f42ffc6131e9bd72500)

frontend/src/Components/ProgressBar.css

@@ -45,6 +45,10 @@
   cursor: default;
 }
 
+.default {
+  background-color: var(--darkGray);
+}
+
 .primary {
   background-color: var(--primaryColor);
 }

frontend/src/Components/ProgressBar.css.d.ts

@@ -5,6 +5,7 @@ interface CssExports {
   'backTextContainer': string;
   'container': string;
   'danger': string;
+  'default': string;
   'frontText': string;
   'frontTextContainer': string;
   'info': string;