fix(textarea): remove space if prefix/suffix is hidden (#1526)

Author: SisIvanova

src/components/input/input-base.ts

@@ -52,10 +52,16 @@ export abstract class IgcInputBaseComponent extends FormAssociatedRequiredMixin(
   @queryAssignedElements({ slot: 'helper-text' })
   protected _helperText!: Array<HTMLElement>;
 
-  @queryAssignedElements({ slot: 'prefix' })
+  @queryAssignedElements({
+    slot: 'prefix',
+    selector: '[slot="prefix"]:not([hidden])',
+  })
   protected prefixes!: Array<HTMLElement>;
 
-  @queryAssignedElements({ slot: 'suffix' })
+  @queryAssignedElements({
+    slot: 'suffix',
+    selector: '[slot="suffix"]:not([hidden])',
+  })
   protected suffixes!: Array<HTMLElement>;
 
   protected get _isMaterial() {

src/components/textarea/textarea.ts

@@ -103,10 +103,16 @@ export default class IgcTextareaComponent extends FormAssociatedRequiredMixin(
   @queryAssignedNodes({ flatten: true })
   private projected!: Array<Node>;
 
-  @queryAssignedElements({ slot: 'prefix' })
+  @queryAssignedElements({
+    slot: 'prefix',
+    selector: '[slot="prefix"]:not([hidden])',
+  })
   protected prefixes!: Array<HTMLElement>;
 
-  @queryAssignedElements({ slot: 'suffix' })
+  @queryAssignedElements({
+    slot: 'suffix',
+    selector: '[slot="suffix"]:not([hidden])',
+  })
   protected suffixes!: Array<HTMLElement>;
 
   @query('textarea', true)