Fix action-strip imports to use entry points

- Updated grid-action-button to import from igniteui-angular/icon
- Updated grid-action-button to import from igniteui-angular/directives
- Fixed relative imports that were breaking the build

Build progressing - action-strip now uses correct entry point imports

Co-authored-by: kdinev <[email protected]>

Author: Copilot

projects/igniteui-angular/action-strip/src/action-strip/grid-actions/grid-action-button.component.ts

@@ -1,7 +1,7 @@
 import { Component, Input, TemplateRef, ViewChild, Output, EventEmitter, ElementRef, booleanAttribute } from '@angular/core';
-import { IgxIconComponent } from '../../icon/icon.component';
-import { IgxRippleDirective } from '../../directives/ripple/ripple.directive';
-import { IgxIconButtonDirective } from '../../directives/button/icon-button.directive';
+import { IgxIconComponent } from 'igniteui-angular/icon';
+import { IgxRippleDirective } from 'igniteui-angular/directives';
+import { IgxIconButtonDirective } from 'igniteui-angular/directives';
 
 /* blazorElement */
 /* wcElementTag: igc-grid-action-button */