Fix spinning icon, text visibility, auto-priority, and SPN match highlighting

- Replace spinning icon with static icon on Active Jobs header
- Match highlighting now checks source keyword against name, MPN, AND provider ID (SPN)
- Show green "Match" badge in source field column when any field matches 100%
- Auto-increment priority when adding new field mapping rows
- Fix text-muted visibility issues on table-success background

assets/controllers/field_mapping_controller.js

@@ -70,6 +70,13 @@ export default class extends Controller {
             newFieldSelect.addEventListener('change', this.updateFieldOptions.bind(this))
         }
 
+        // Auto-increment priority based on existing mappings
+        const nextPriority = this.getNextPriority()
+        const priorityInput = newRow.querySelector('input[name*="[priority]"]')
+        if (priorityInput) {
+            priorityInput.value = nextPriority
+        }
+
         this.updateFieldOptions()
         this.updateAddButtonState()
     }
@@ -119,6 +126,18 @@ export default class extends Controller {
         }
     }
 
+    getNextPriority() {
+        const priorityInputs = this.tbodyTarget.querySelectorAll('input[name*="[priority]"]')
+        let maxPriority = 0
+        priorityInputs.forEach(input => {
+            const val = parseInt(input.value, 10)
+            if (!isNaN(val) && val > maxPriority) {
+                maxPriority = val
+            }
+        })
+        return Math.min(maxPriority + 1, 10)
+    }
+
     handleFormSubmit(event) {
         if (this.hasSubmitButtonTarget) {
             this.submitButtonTarget.disabled = true