[ProgressBar] Consolidate se23 logic and styles (Shopify#10130)

### WHY are these changes introduced?

Fixes Shopify#9959

### WHAT is this pull request doing?

Consolidate se23 logic and styles for `PageActions` Component

### How to 🎩
Compare production and this PR's chromatic storybook to make sure styles
are the same


[Production](https://storybook.polaris.shopify.com/?path=/story/all-components-progressbar--default&globals=polarisSummerEditions2023:true)
[This
PR](https://5d559397bae39100201eedc1-lasqorkejk.chromatic.com/?path=/story/all-components-progressbar--default)

polaris-react/src/components/ProgressBar/ProgressBar.scss

@@ -38,13 +38,8 @@
 .toneHighlight {
   // stylelint-disable -- Polaris component custom properties
   --pc-progress-bar-background: var(--p-color-bg-strong);
-  --pc-progress-bar-indicator: var(--p-color-border-info);
+  --pc-progress-bar-indicator: var(--p-color-bg-info-strong);
   // stylelint-enable
-
-  #{$se23} & {
-    // stylelint-disable-next-line -- Polaris component custom properties, se23 temporary styles
-    --pc-progress-bar-indicator: var(--p-color-bg-info-strong);
-  }
 }
 
 .tonePrimary {
@@ -57,25 +52,15 @@
 .toneSuccess {
   // stylelint-disable -- Polaris component custom properties
   --pc-progress-bar-background: var(--p-color-bg-strong);
-  --pc-progress-bar-indicator: var(--p-color-border-success);
+  --pc-progress-bar-indicator: var(--p-color-bg-success-strong);
   // stylelint-enable
-
-  #{$se23} & {
-    // stylelint-disable-next-line -- Polaris component custom properties, se23 temporary styles
-    --pc-progress-bar-indicator: var(--p-color-bg-success-strong);
-  }
 }
 
 .toneCritical {
   // stylelint-disable -- Polaris component custom properties
   --pc-progress-bar-background: var(--p-color-bg-strong);
-  --pc-progress-bar-indicator: var(--p-color-bg-critical);
+  --pc-progress-bar-indicator: var(--p-color-bg-critical-strong);
   // stylelint-enable
-
-  #{$se23} & {
-    // stylelint-disable-next-line -- Polaris component custom properties, se23 temporary styles
-    --pc-progress-bar-indicator: var(--p-color-bg-critical-strong);
-  }
 }
 
 .Indicator {