fix(techdocs): fix copy documentation link to clipboard url

Signed-off-by: Johan Hammar <johan.hammar@gmail.com>

.changeset/healthy-cycles-exercise.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-techdocs': patch
+---
+
+Fixed the URL for the "Click to copy documentation link to clipboard" action

plugins/techdocs/src/home/components/actions.tsx

@@ -28,12 +28,7 @@ export function createCopyDocsUrlAction(copyToClipboard: Function) {
       icon: () => <ShareIcon fontSize="small" />,
       tooltip: 'Click to copy documentation link to clipboard',
       onClick: () =>
-        copyToClipboard(
-          `${window.location.origin}${window.location.pathname.replace(
-            /\/?$/,
-            '/',
-          )}${row.resolved.docsUrl}`,
-        ),
+        copyToClipboard(`${window.location.origin}${row.resolved.docsUrl}`),
     };
   };
 }