Add variants for {title} placeholder for formating

[rambip]

100% percent of my obsidian notes have the same title format: letters and dashes

I tried to set the "note to clip to" to clipping-{title} but it gets really ugly with the spaces and special characters.

It would be really nice to have variants (like {title:snake-case} or {title:kebab-case}) to be able to get a more clean title.

Related to #45

[rambip]

I think I found a solution for my usecase:

title:

clippings/{zettel}

content:

---
aliases: {title}
tags: clipping
---

# Source
[{title}]({url})

# Content
{clip}