chore feat: update .gitignore with css bundle files

.gitignore

@@ -74,6 +74,7 @@ bundle-report.*.html
 /webroot/css/date-input*
 /webroot/css/email-input*
 /webroot/css/flash-message*
+/webroot/css/folder-picker*
 /webroot/css/import-result*
 /webroot/css/index-cell*
 /webroot/css/labels-form*
@@ -84,10 +85,12 @@ bundle-report.*.html
 /webroot/css/object-property*
 /webroot/css/objects-history*
 /webroot/css/permission*
+/webroot/css/placeholder-list*
 /webroot/css/property-view*
 /webroot/css/roles-list-view*
 /webroot/css/secret*
 /webroot/css/show-hide*
+/webroot/css/system-info*
 /webroot/css/tag-form*
 /webroot/css/tag-picker*
 /webroot/css/thumbnail*