ui: Improve language surrounding marking a token as local/global (#7830)

This commit moved the checkbox used for marking a token as
local/global to use a more traditional UX, i.e.:

[ ] Question?

Clicking the radiobutton toggles true/false:

true = yes
false = no

instead of:

false=yes
true=no

ui-v2/app/templates/dc/acls/tokens/-fieldsets.hbs

@@ -1,12 +1,11 @@
 <fieldset>
 {{#if create }}
-  <div class="type-toggle type-negative">
-    <span>Restrict this token to a local datacenter?</span>
-    <em>Local tokens get set in the Raft store of the local DC and do not ever get transmitted to the primary DC or replicated to any other DC.</em>
+  <div class="type-toggle">
     <label>
-      <input type="checkbox" name="Local" checked={{if (not Local) 'checked' }} onchange={{action 'change'}} />
-      <span>No</span>
+      <input type="checkbox" name="Local" checked={{if Local 'checked' }} onchange={{action 'change'}} />
+      <span>Restrict this token to a local datacenter?</span>
     </label>
+    <em>Local tokens get set in the Raft store of the local DC and do not ever get transmitted to the primary DC or replicated to any other DC.</em>
   </div>
 {{/if}}
   <label class="type-text validate-optional">