Replace relative file:// urls with absolute path.

[matijagaspar]

Simple workaround to make relative file:// images work.

It replaces every occurrence file://relative/path/file with file://absolutepath/relative/path/file. It will ignore it if it is a absolute path already (ie: file:///abs/path/file)

Regex could be additionally restricted to only check in specific attributes. However it should rarely happen that someone has a file:// in a text

[attilabuti]

Thank you for your contribution!
I will add it in the next update.

(Currently I'm working on a new preview manager, with more options.)

[attilabuti]

Released in v0.0.4