Icon won't allow config on enabled tab of NbRouteTabsetComponent

[javiercampos]

Issue type

I'm submitting a ... (check one with "x")

• bug report
• feature request

Issue description

According to #1935 (which closed #1323 ) , components which use icons should be accepting an icon config object (instead of just a string), however this commit 13d74cf is missing the change on the enabled tab template, so it only works for disabled tabs.

The fix should be easy, just change the line:

nebular/src/framework/theme/components/route-tabset/route-tabset.component.ts

Line 105 in ac50dae

<nb-icon *ngIf="tab.icon" [icon]="tab.icon"></nb-icon>

to bind to the [config] property instead of [icon], as done on the disabled tab code a few lines above it on the specified commit:

nebular/src/framework/theme/components/route-tabset/route-tabset.component.ts

Line 91 in ac50dae

<nb-icon *ngIf="tab.icon" [config]="tab.icon"></nb-icon>

Other information:

Tested on Angular 9 and nebular 5.0, but the problem is quite obvious that it's still there on master, and should be an easy fix (I really don't have time to make a pull request right now or I'd gladly do it)