[web] fix footer for storybook index.html (#28600)

GitOrigin-RevId: 462e11a54619998f5ece336f8dfa5b0109608d81

services/web/.storybook/index.html.m4

@@ -72,7 +72,7 @@ divert`'dnl
     <small>
       Last updated on syscmd(date)dnl
       for ifdef(`BRANCH_NAME',<a href="BRANCH_NAME/">BRANCH_NAME</a>,unknown branch)
-      (<a href="https://console.cloud.google.com/cloud-build/builds?project=overleaf-dev&pageState=(%22builds%22:(%22f%22:%22%255B%257B_22k_22_3A_22Trigger%2520Name_22_2C_22t_22_3A10_2C_22v_22_3A_22_5C_22storybook-pr-trigger_5C_22_22_2C_22s_22_3Atrue_2C_22i_22_3A_22triggerName_22%257D_2C%257B_22k_22_3A_22_22_2C_22t_22_3A10_2C_22v_22_3A_22_5C_22OR_5C_22_22_2C_22o_22_3Atrue_2C_22s_22_3Atrue%257D_2C%257B_22k_22_3A_22Trigger%2520Name_22_2C_22t_22_3A10_2C_22v_22_3A_22_5C_22storybook-push-trigger_5C_22_22_2C_22s_22_3Atrue_2C_22i_22_3A_22triggerName_22%257D%255D%22))">build history</a>).
+      (<a href="https://jenkins.ops-overleaf.com/job/Overleaf_Organization/job/Storybook/view/default/builds">build history</a>).
     </small>
   </body>
 </html>

services/web/Makefile

@@ -615,7 +615,7 @@ storybook_index:
 										| grep -v -e index.html \
 										| sort \
 										| tr '\n' ,)" \
-		-DBRANCH_NAME="$BRANCH_NAME" .storybook/index.html.m4 \
+		-DBRANCH_NAME="${BRANCH_NAME}" .storybook/index.html.m4 \
 	> data/storybook/index.html
 
 MODULE_TARGETS = \