Feature Request: Replace Double Backslashes with Single Backslashes

[vanabel]

Issue Description: I'm currently using the plugin in Logseq to sync RSS content. However, I've encountered an issue where double backslashes (\\) in the fetched content are not properly handled and displayed as-is in Logseq. This creates readability issues, and I'd like to request a feature enhancement to replace double backslashes with single backslashes.

Steps to Reproduce: write an email to omnivore mail address with content:

Hi, this is a test of math:
in line math $\int_a^b f'(x)dx=f(b)-f(a)$; another delimiter \(\int_a^b f'(x)dx=f(b)-f(a)\)
The display form:
$$
\int_a^b f'(x)dx=f(b)-f(a)
$$
and another delimiter
\[
\int_a^b f'(x)dx=f(b)-f(a)
\]
Did this work?

1. read the email on https://omnivore.app and hi-light it
2. go to logseq, sync the recent hilights, you will see:

   > Hi, this is a test of math: in line math $\\int_a^b f'(x)dx=f(b)-f(a)$; another delimiter (\\int_a^b f'(x)dx=f(b)-f(a)) The display form: $$ \\int_a^b f'(x)dx=f(b)-f(a) $$ and another delimiter \[ \\int_a^b f'(x)dx=f(b)-f(a) \] Did this work?

Expected Behavior: Since the command like \int is for math formula, which will be handed by mathjax/katex in logseq. It should keep the form what it is originally looks like. That is, after the sync process, I expect the double backslashes (\\) in the fetched content to be replaced with single backslashes (\) in Logseq.

Actual Behavior: (Current behavior - explain what happens now) The command \int is transformed into \\int.

Issue Type:

• [ ] Bug
• [x] Feature Request

Priority:

• [ ] Low
• [ ] Medium
• [x] High

Please let me know if you need any additional information or if there's anything else I can provide to help address this issue. Thank you for your attention to this matter.