Improve active route detection in TabMenu

[noamichael]

Previously, #417 covered the issue where <TabMenu/> items were only consider active if the route path matched the item route exactly (=== vs. startsWith). This was fixed in commit 7fb409d`:

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

However, since commit 3f2b51a, the route match has reverted back to using exact matches only:

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

I believe this is a regression and there should at least be an option to determine if the match should be exact or fuzzy much like the official vue router.

[cagataycivici]

There is a new property called exact to decide if route matching should be exact or not.

[beocaca]

  <TabMenu :model="subsTrackerTypes.tabs"
               :exact="false"
               v-model:activeIndex="activeIndex"
      />

how to exact false? i want to use v-model:activeIndex