fix(input-group): fluent theme discrepancies

Author: SisIvanova

src/components/input/themes/shared/input.fluent.scss

@@ -83,10 +83,6 @@ $focused-height: calc(var-get($theme, 'size') - #{($focused-border-width * 2)});
 }
 
 :host(:focus-within) {
-    [part='label'] {
-        color: color(gray, 800);
-    }
-
     [part^='container'] {
         border-color: var-get($theme, 'focused-border-color');
         border-width: #{$focused-border-width};
@@ -110,6 +106,14 @@ $focused-height: calc(var-get($theme, 'size') - #{($focused-border-width * 2)});
     }
 }
 
+:host([type='search']) {
+    [part='prefix'],
+    [part='suffix'] {
+        background: transparent;
+        color: var(--ig-primary-500);
+    }
+}
+
 :host([type='search']:focus-within) {
     [part='prefix'] {
         display: none;