Seperates custom library code from external.

cdesai_tff.libraries.yml

@@ -7,10 +7,18 @@ qTip2:
     gpl-compatible: true
   js:
     https://cdnjs.cloudflare.com/ajax/libs/qtip2/3.0.3/jquery.qtip.min.js: { type: external, minified: true }
-    js/tooltip.js: { }
   css:
     theme:
       https://cdnjs.cloudflare.com/ajax/libs/qtip2/3.0.3/jquery.qtip.min.css: { type: external, minified: true }
+  dependencies:
+    - core/jquery
+
+tooltip:
+  version: 1.x
+  js:
+    js/tooltip.js: { }
+  css:
+    theme:
       css/tooltip.css: { }
   dependencies:
     - core/jquery

src/Plugin/Field/FieldFormatter/TooltipTextFormatter.php

@@ -47,7 +47,8 @@ class TooltipTextFormatter extends DesaiTextFormatterBase {
         ],
         '#attached' => [
           'library' => [
-            'cdesai_tff/qTip2'
+            'cdesai_tff/qTip2',
+            'cdesai_tff/tooltip',
           ],
         ],
       ];