feat(input): remove size property in favor of CSS styling (#28903)

Issue number: Internal

---------

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

The `ion-input` component currently specifies a `size` attribute to
align with the HTML `input` implementation. However, Ionic's custom
appearance for MD and iOS is not compatible and should not be used with
the `size` attribute:
https://github.com/ionic-team/ionic-framework/issues/27945#issuecomment-1669702274.

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

- The `size` property has been removed from `ion-input`.

## Does this introduce a breaking change?

- [x] Yes
- [ ] No

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The `size` attribute has been removed from `ion-input`. As it was not
compatible before, this is likely to have a minimal impact to
developers. If your application is using the `size` attribute, replace
the usage with CSS styling to control the width of the `ion-input`.


## Other information

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

packages/angular/src/directives/proxies.ts

@@ -955,7 +955,7 @@ export declare interface IonInfiniteScrollContent extends Components.IonInfinite
 
 
 @ProxyCmp({
-  inputs: ['accept', 'autocapitalize', 'autocomplete', 'autocorrect', 'autofocus', 'clearInput', 'clearOnEdit', 'color', 'counter', 'counterFormatter', 'debounce', 'disabled', 'enterkeyhint', 'errorText', 'fill', 'helperText', 'inputmode', 'label', 'labelPlacement', 'legacy', 'max', 'maxlength', 'min', 'minlength', 'mode', 'multiple', 'name', 'pattern', 'placeholder', 'readonly', 'required', 'shape', 'size', 'spellcheck', 'step', 'type', 'value'],
+  inputs: ['accept', 'autocapitalize', 'autocomplete', 'autocorrect', 'autofocus', 'clearInput', 'clearOnEdit', 'color', 'counter', 'counterFormatter', 'debounce', 'disabled', 'enterkeyhint', 'errorText', 'fill', 'helperText', 'inputmode', 'label', 'labelPlacement', 'legacy', 'max', 'maxlength', 'min', 'minlength', 'mode', 'multiple', 'name', 'pattern', 'placeholder', 'readonly', 'required', 'shape', 'spellcheck', 'step', 'type', 'value'],
   methods: ['setFocus', 'getInputElement']
 })
 @Component({
@@ -963,7 +963,7 @@ export declare interface IonInfiniteScrollContent extends Components.IonInfinite
   changeDetection: ChangeDetectionStrategy.OnPush,
   template: '<ng-content></ng-content>',
   // eslint-disable-next-line @angular-eslint/no-inputs-metadata-property
-  inputs: ['accept', 'autocapitalize', 'autocomplete', 'autocorrect', 'autofocus', 'clearInput', 'clearOnEdit', 'color', 'counter', 'counterFormatter', 'debounce', 'disabled', 'enterkeyhint', 'errorText', 'fill', 'helperText', 'inputmode', 'label', 'labelPlacement', 'legacy', 'max', 'maxlength', 'min', 'minlength', 'mode', 'multiple', 'name', 'pattern', 'placeholder', 'readonly', 'required', 'shape', 'size', 'spellcheck', 'step', 'type', 'value'],
+  inputs: ['accept', 'autocapitalize', 'autocomplete', 'autocorrect', 'autofocus', 'clearInput', 'clearOnEdit', 'color', 'counter', 'counterFormatter', 'debounce', 'disabled', 'enterkeyhint', 'errorText', 'fill', 'helperText', 'inputmode', 'label', 'labelPlacement', 'legacy', 'max', 'maxlength', 'min', 'minlength', 'mode', 'multiple', 'name', 'pattern', 'placeholder', 'readonly', 'required', 'shape', 'spellcheck', 'step', 'type', 'value'],
 })
 export class IonInput {
   protected el: HTMLElement;