test: migrate form control usages to modern syntax (#28897)

Issue number: Internal

---------

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## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->

Several tests were still using the legacy form syntax.

## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->

- Migrated tests in `core`, `angular`, and `vue` to use the modern form
syntax (`react` did not have form controls).

I opted not to migrate `item/test/highlight` and `item/test/counter`
because those tests are going to be removed in the future once the
deprecate item APIs are removed.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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1. Describe the impact and migration path for existing applications
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  2. Update the BREAKING.md file with the breaking change.
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## Other information

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screenshots of how the component looks before and after the change. -->

---------

Co-authored-by: ionitron <hi@ionicframework.com>
Co-authored-by: Maria Hutt <thetaPC@users.noreply.github.com>

core/src/utils/input-shims/hacks/test/index.html

@@ -48,37 +48,31 @@
 
       <ion-content class="ion-padding">
         <ion-item>
-          <ion-label>Input Above Keyboard</ion-label>
-          <ion-input id="input-above-keyboard"></ion-input>
+          <ion-input label="Input Above Keyboard" id="input-above-keyboard"></ion-input>
         </ion-item>
 
         <ion-item>
-          <ion-label>Textarea Above Keyboard</ion-label>
-          <ion-textarea id="textarea-above-keyboard"></ion-textarea>
+          <ion-textarea label="Textarea Above Keyboard" id="textarea-above-keyboard"></ion-textarea>
         </ion-item>
 
         <div class="spacer" style="height: 400px"></div>
 
         <ion-item id="item-below-keyboard">
-          <ion-label>Input Below Keyboard</ion-label>
-          <ion-input id="input-below-keyboard"></ion-input>
+          <ion-input label="Input Below Keyboard" id="input-below-keyboard"></ion-input>
         </ion-item>
 
         <ion-item>
-          <ion-label>Textarea Below Keyboard</ion-label>
-          <ion-textarea id="textarea-below-keyboard"></ion-textarea>
+          <ion-textarea label="Textarea Below Keyboard" id="textarea-below-keyboard"></ion-textarea>
         </ion-item>
 
         <div class="spacer" style="height: 400px"></div>
 
         <ion-item>
-          <ion-label>Input Outside Viewport</ion-label>
-          <ion-input id="input-outside-viewport"></ion-input>
+          <ion-input label="Input Outside Viewport" id="input-outside-viewport"></ion-input>
         </ion-item>
 
         <ion-item>
-          <ion-label>Textarea Outside Viewport</ion-label>
-          <ion-textarea id="textarea-outside-viewport"></ion-textarea>
+          <ion-textarea label="Textarea Outside Viewport" id="textarea-outside-viewport"></ion-textarea>
         </ion-item>
       </ion-content>
 

core/src/utils/keyboard/test/index.html

@@ -43,8 +43,8 @@
 
       <ion-footer>
         <ion-toolbar>
-          <ion-input type="text" placeholder="Enter some text..."></ion-input>
-          <ion-input type="text" placeholder="Enter some text..."></ion-input>
+          <ion-input aria-label="input" type="text" placeholder="Enter some text..."></ion-input>
+          <ion-input aria-label="input" type="text" placeholder="Enter some text..."></ion-input>
         </ion-toolbar>
       </ion-footer>
     </ion-app>

core/src/utils/test/overlays/index.html

@@ -34,8 +34,7 @@
 
         <ion-content class="ion-padding">
           <ion-item>
-            <ion-label>Text Input</ion-label>
-            <ion-input id="root-input"></ion-input>
+            <ion-input label="Text Input" id="root-input"></ion-input>
           </ion-item>
 
           <ion-button id="create" onclick="createModal()">Create a Modal</ion-button>
@@ -66,8 +65,7 @@
             Modal Content
 
             <ion-item>
-              <ion-label>Text Input</ion-label>
-              <ion-input class="modal-input modal-input-${id}"></ion-input>
+              <ion-input label="Text Input" class="modal-input modal-input-${id}"></ion-input>
             </ion-item>
 
             <ion-button id="modal-create">Create a Modal</ion-button>