feat: add indentation queries for angular

tests/indent/angular/defer.html

@@ -0,0 +1,9 @@
+@defer (on viewport) {
+  <calendar-cmp />
+} @placeholder (minimum 100ms) {
+  <small-component />
+} @loading (after 100s; minimum 200ms){
+  <loading-spinner />
+} @error {
+  <error-message />
+}

tests/indent/angular/for.html

@@ -0,0 +1,5 @@
+@for (item of items; track item.id) {
+  <li>{{ item.name }}</li>
+} @empty {
+  <p>No items</p>
+}

tests/indent/angular/if-else.html

@@ -0,0 +1,15 @@
+@if (someCondition) {
+  <p>someCondition is true</p>
+} @else {
+  <p>someCondition is false</p>
+}
+
+<div>
+  @if (someOther) {
+    <span>True</span>
+
+    @if (nestedCondition) {
+      <span>Nested</span>
+    }
+  }
+</div>

tests/indent/angular/switch-case.html

@@ -0,0 +1,13 @@
+<div>
+  @switch (obj.property) {
+    @case (1) {
+      <p>Case 1</p>
+    }
+    @case (2) {
+      <p>Case 2</p>
+    }
+    @default {
+      <p>Default</p>
+    }
+  }
+</div>