Links to headings don't work if the heading contains a colon

[dcampagnone]

When headings contain a colon (example: NOTE: JULY 19 2024) the generated heading does not work. When clicking on it, an error appears saying "cannot open location". There is also an outgoing link icon next to the heading so it's possible it may think the source is external.

Removing the colon from the heading fixes the issue.

[turulix]

Probably related to #81