Rename the Equipment by Type report card to Machines by Type

Display label only, matching the Machines relabel; the endpoint id and
equipmenttype entity are unchanged.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

frontend/src/views/reports/ReportsIndex.vue

@@ -113,7 +113,7 @@
         <table>
           <thead>
             <tr>
-              <th>Equipment Type</th>
+              <th>Machine Type</th>
               <th>Description</th>
               <th>Count</th>
             </tr>