Show which feature is force disabled in the options page

Bug: twpowertools:64
Change-Id: I11ce740d5036ccff832f39d2a0f10290b0b063aa
diff --git a/src/static/options/options.html b/src/static/options/options.html
index 8dde2a4..8a0915a 100644
--- a/src/static/options/options.html
+++ b/src/static/options/options.html
@@ -39,7 +39,7 @@
         </a>
       </div>
       <form>
-        <div class="kill-switch-text" id="kill-switch-warning" hidden data-i18n="killswitchwarning"></div>
+        <div id="kill-switch-warning" hidden data-i18n="killswitchwarning"></div>
         <div id="options-container"></div>
         <div class="actions"><button id="save" data-i18n="save"></button></div>
       </form>