Correcting title attr. of display_link

[BstName]

Fixes a minor glitch in edit_link_save in insert.js:

Problem / How to reproduce:

After edition of an URL's title, the title attribute of the display title (as visible on hovering the display title) is replaced by the (untrimmed) long URL. This is unexpected/inconsistent behavior [behaviour] since in contrast, for an existing unedited URL title, the respective title attribute is simply the (untrimmed) title itself (see the line 'title_attr' => yourls_esc_attr( $title ), in yourls_table_add_row in functions-html.php: cf.

YOURLS/includes/functions-html.php

Line 561 in cb86f5b

'title_attr' => yourls_esc_attr( $title ),

).

Fix:
Plugging in data.url.title as (untrimmed) title attribute (instead of plugging in data.url.url) when setting the variable display_link.

[LeoColomb]

Indeed. Thanks!

[BstName]

You are welcome, thanks for merging!