Avoid repeated disables

src/freedombone-app-jitsi

     # an obvious security problem. This should disable it.
     sed -i "s|Google Analytics|Google Spyware deactivated|g" /usr/share/jitsi-meet/analytics.js
     sed -i "s|www.google-analytics.com|${JITSI_DOMAIN_NAME}|g" /usr/share/jitsi-meet/analytics.js
-    sed -i 's|ga(|//ga(|g' /usr/share/jitsi-meet/analytics.js
-    sed -i 's|action +|//action +|g' /usr/share/jitsi-meet/analytics.js
+    if ! grep '//ga(' /usr/share/jitsi-meet/analytics.js; then
+        sed -i 's|ga(|//ga(|g' /usr/share/jitsi-meet/analytics.js
+    fi
+    if ! grep '//action +' /usr/share/jitsi-meet/analytics.js; then
+        sed -i 's|action +|//action +|g' /usr/share/jitsi-meet/analytics.js
+    fi
 
     sed -i "s|Google Analytics|Google Spyware deactivated|g" /usr/share/jitsi-meet/libs/analytics.js
     sed -i "s|www.google-analytics.com|${JITSI_DOMAIN_NAME}|g" /usr/share/jitsi-meet/libs/analytics.js
-    sed -i 's|ga(|//ga(|g' /usr/share/jitsi-meet/libs/analytics.js
-    sed -i 's|action +|//action +|g' /usr/share/jitsi-meet/libs/analytics.js
+    if ! grep '//ga(' /usr/share/jitsi-meet/libs/analytics.js; then
+        sed -i 's|ga(|//ga(|g' /usr/share/jitsi-meet/libs/analytics.js
+    fi
+    if ! grep '//action +' /usr/share/jitsi-meet/libs/analytics.js; then
+        sed -i 's|action +|//action +|g' /usr/share/jitsi-meet/libs/analytics.js
+    fi
 }
 
 function change_password_jitsi {