fetch title from URL in titles

[arcturus140]

Current behavior

Fetching web title does not work when inside a markdown title.

Expected behavior (as in BN 0.11.12)

1. create a new markdown note
2. write a title: #
3. paste some url: # https://www.google.com/

result: # [Google](https://www.google.com/)

Steps to reproduce

1. create a new markdown note
2. write a title: #
3. paste some url: # https://www.google.com/

result: # https://www.google.com/

Environment

• Version : 0.11.15
• OS Version and name : 16.04 Ubuntu

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