Fix empty public_api.ts files in entry points

- Added exports to radio/src/radio/public_api.ts
- Added exports to avatar, badge, snackbar, switch, tabs, toast public_api.ts files
- These files were empty causing build errors
- Each now exports its respective component

Fixes build errors for 7 entry points

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

Author: Copilot

projects/igniteui-angular/avatar/src/avatar/public_api.ts

@@ -0,0 +1 @@
+export * from './avatar.component';

projects/igniteui-angular/badge/src/badge/public_api.ts

@@ -0,0 +1 @@
+export * from './badge.component';

projects/igniteui-angular/radio/src/radio/public_api.ts

@@ -0,0 +1 @@
+export * from './radio.component';

projects/igniteui-angular/snackbar/src/snackbar/public_api.ts

@@ -0,0 +1 @@
+export * from './snackbar.component';

projects/igniteui-angular/switch/src/switch/public_api.ts

@@ -0,0 +1 @@
+export * from './switch.component';

projects/igniteui-angular/tabs/src/tabs/public_api.ts

@@ -0,0 +1 @@
+export * from './tabs/public_api';

projects/igniteui-angular/toast/src/toast/public_api.ts

@@ -0,0 +1 @@
+export * from './toast.component';