fix: package selection enable/disable logic

Author: MatteoGabriele

app/components/Package/Card.vue

@@ -67,7 +67,7 @@ const numberFormatter = useNumberFormatter()
 
       <PackageSelectionCheckbox
         :package-name="result.package.name"
-        :disabled="canSelectMore && !isSelected"
+        :disabled="!canSelectMore && !isSelected"
         :checked="isSelected"
         @change="togglePackageSelection"
       />

app/components/Package/TableRow.vue

@@ -55,7 +55,7 @@ const allMaintainersText = computed(() => {
     <td class="ps-3">
       <PackageSelectionCheckbox
         :package-name="result.package.name"
-        :disabled="canSelectMore && !isSelected"
+        :disabled="!canSelectMore && !isSelected"
         :checked="isSelected"
         @change="togglePackageSelection"
       />

app/composables/usePackageSelection.ts

@@ -22,7 +22,7 @@ export function usePackageSelection() {
     },
   })
 
-  const canSelectMore = computed(() => selectedPackages.value.length >= MAX_PACKAGE_SELECTION)
+  const canSelectMore = computed(() => selectedPackages.value.length < MAX_PACKAGE_SELECTION)
 
   const showSelectionView = computed<boolean>({
     get() {