fix(input): update label padding to align with the outline input in ionic theme (#30152)

Issue number: internal

---------

## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->
There were a misalignment between the labels' input and the labels'
Textarea.

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

- Updates label text padding to match textarea structure 
- Updates helper and counter text padding to match textarea structure 
- Updates e2e tests snapshots to include changes

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

<!--
  If this introduces a breaking change:
1. Describe the impact and migration path for existing applications
below.
  2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/docs/CONTRIBUTING.md#footer
for more information.
-->


## Other information

<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->
[input
preview](https://ionic-framework-git-rou-11544-ionic1.vercel.app/src/components/input/test/bottom-content?ionic:theme=ionic)
[textarea
preview](https://ionic-framework-git-rou-11544-ionic1.vercel.app/src/components/textarea/test/basic?ionic:theme=ionic)

---------

Co-authored-by: Brandy Smith <brandyscarney@users.noreply.github.com>

core/src/components/input/input.ionic.outline.scss

@@ -28,16 +28,6 @@
   border-top: none;
 }
 
-:host(.input-fill-outline.input-shape-round) .input-bottom,
-:host(.input-fill-outline.input-label-placement-floating) .input-bottom {
-  /**
-   * The bottom content should take on the start and end
-   * padding so it is always aligned with either the label
-   * or the start of the text input.
-   */
-  @include padding-horizontal(var(--padding-start), var(--padding-end));
-}
-
 :host(.input-fill-outline) .input-wrapper {
   /**
    * For the ionic theme, the padding needs to sit on the
@@ -62,10 +52,6 @@
   background: transparent;
 }
 
-:host(.input-fill-outline.input-shape-round) .label-text-wrapper {
-  @include padding(null, var(--padding-end), null, var(--padding-start));
-}
-
 :host(.input-fill-outline.input-label-placement-stacked) .label-text-wrapper {
   @include transform-origin(start, top);
 
@@ -142,7 +128,7 @@
 }
 
 :host(.input-fill-outline.input-shape-round) {
-  --border-radius: #{$ion-border-radius-full};
+  --border-radius: #{$ion-border-radius-400};
 }
 
 :host(.input-fill-outline.input-shape-rectangular) {

core/src/components/input/input.ionic.scss

@@ -6,11 +6,11 @@
 // --------------------------------------------------
 
 :host {
-  --color: #{globals.$ion-primitives-neutral-1000};
+  --color: #{globals.$ion-primitives-neutral-1200};
   --border-width: #{globals.$ion-border-size-025};
-  --border-color: #{globals.$ion-primitives-neutral-300};
+  --border-color: #{globals.$ion-primitives-neutral-500};
-  --highlight-color-valid: #{globals.$ion-semantics-success-base};
+  --highlight-color-valid: #{globals.$ion-semantics-success-900};
-  --highlight-color-invalid: #{globals.$ion-semantics-danger-base};
+  --highlight-color-invalid: #{globals.$ion-semantics-danger-800};
   --placeholder-color: #{globals.$ion-primitives-neutral-800};
   --placeholder-opacity: 1;
   --text-color-invalid: #{globals.$ion-semantics-danger-800};
@@ -88,7 +88,7 @@
   width: globals.$ion-scale-400;
   height: globals.$ion-scale-400;
 
-  color: globals.$ion-primitives-neutral-500;
+  color: globals.$ion-primitives-neutral-1000;
 }
 
 .input-clear-icon:focus-visible {
@@ -176,8 +176,10 @@
 
 :host(.input-disabled) {
   // color for the text within the input
-  --color: #{globals.$ion-primitives-neutral-400};
+  --color: #{globals.$ion-primitives-neutral-500};
   --background: #{globals.$ion-primitives-neutral-100};
+  --border-color: #{globals.$ion-primitives-neutral-300};
+  --placeholder-color: #{globals.$ion-primitives-neutral-500};
 
   pointer-events: none;
 }