BUG: Tags in webpages are not escaped

[ReveredOxygen]

Version (please complete the following information):

• OS: Linux
• Browser: LibreWolf
• Web Clipper version: 0.10.7
• Obsidian version: 1.8.4

Describe the bug

When you create a clip of a webpage that contains tag syntax (such as #example), the created note will have that tag.

This normally wouldn't be too bad since you could simply use the replace filter to escape it, but it appears that trying to insert backslashes with filters (such as {{contentHtml|replace:"#":"\#"|markdown}}) actually doesn't work either.

Expected behavior

The syntax would be escaped, such as \#example. This would align better with the behavior when clipping webpages that contain [[wikilink syntax]]

URLs where the bug occurs

#353

To reproduce

Steps to reproduce the behavior:

1. Clip this issue
2. Notice that the resulting note has the #example tag