fix: button sizing (#22777)

diff --git a/erpnext/templates/includes/footer/footer_extension.html b/erpnext/templates/includes/footer/footer_extension.html
index 8cf3081..6171b61 100644
--- a/erpnext/templates/includes/footer/footer_extension.html
+++ b/erpnext/templates/includes/footer/footer_extension.html
@@ -6,7 +6,7 @@
 		aria-label="{{ _('Your email address...') }}"
 		aria-describedby="footer-subscribe-button">
 	<div class="input-group-append">
-		<button class="btn btn-outline-secondary"
+		<button class="btn btn-sm btn-outline-secondary"
 			type="button" id="footer-subscribe-button">{{ _("Get Updates") }}</button>
 	</div>
 </div>