docs(v-tab): fix missing descriptions (#17001)

Co-authored-by: Andrew Henry <AMajesticPotatoe@gmail.com>

packages/api-generator/src/locale/en/v-tab.json

@@ -5,10 +5,10 @@
     "keydown": "Emitted when **enter** key is pressed"
   },
   "props": {
-    "fixed": "MISSING DESCRIPTION ([edit in github](https://github.com/vuetifyjs/vuetify/tree/master/packages/api-generator/src/locale/en/v-tab.json))",
+    "fixed": "Forces component to take up all available space up to their maximum width (300px), and centers it.",
     "stacked": "Displays the tab as a flex-column.",
-    "sliderColor": "MISSING DESCRIPTION ([edit in github](https://github.com/vuetifyjs/vuetify/tree/master/packages/api-generator/src/locale/en/v-tab.json))",
-    "hideSlider": "MISSING DESCRIPTION ([edit in github](https://github.com/vuetifyjs/vuetify/tree/master/packages/api-generator/src/locale/en/v-tab.json))",
-    "direction": "MISSING DESCRIPTION ([edit in github](https://github.com/vuetifyjs/vuetify/tree/master/packages/api-generator/src/locale/en/v-tab.json))"
+    "sliderColor": "Applies specified color to the slider when active on that component - supports utility colors (for example success or purple) or css color (#033 or rgba(255, 0, 0, 0.5)). Find a list of built-in classes on the [colors page](/styles/colors#material-colors).",
+    "hideSlider": "Hides the active tab slider component (no exit or enter animation).",
+    "direction": "Changes the direction of the tabs. Can be either `horizontal` or `vertical`."
   }
 }