TabMenu should include subpaths in active tab detection

[Dravere]

The TabMenu only checks if the current path matches with the tab menu path. I would suggest to include sub-paths in that check as well and thus use startsWith to check for an active path.

primevue/src/components/tabmenu/TabMenu.vue

Line 53 in d624e17

return this.activeRoute === item.to || this.activeRoute === item.to + '/' ;

isActive(item) {
    return this.activeRoute.startsWith(item.to);
},

So that for example if the menu points at /items/ and we are at /items/edit/6, I would say we are still in the items menu and it should be marked as active.