Add plugin: Sentinel

[gsarig]

Sentinel is a plugin for Obsidian that allows you to update properties or run commands based on document visibility changes.

I am submitting a new Community Plugin

Repo URL

Link to my plugin: https://github.com/gsarig/obsidian-sentinel

Release Checklist

• I have tested the plugin on
  • Windows
  • macOS
  • Linux
  • Android (if applicable)
  • iOS (if applicable)
• My GitHub release contains all required files (as individual files, not just in the source.zip / source.tar.gz)
  • main.js
  • manifest.json
  • styles.css (optional)
• GitHub release name matches the exact version number specified in my manifest.json (Note: Use the exact version number, don't include a prefix v)
• The id in my manifest.json matches the id in the community-plugins.json file.
• My README.md describes the plugin's purpose and provides clear usage instructions.
• I have read the developer policies at https://docs.obsidian.md/Developer+policies, and have assessed my plugins's adherence to these policies.
• I have read the tips in https://docs.obsidian.md/Plugins/Releasing/Plugin+guidelines and have self-reviewed my plugin to avoid these common pitfalls.
• I have added a license in the LICENSE file.
• My project respects and is compatible with the original license of any code from other plugins that I'm using.
  I have given proper attribution to these other projects in my README.md.

[ObsidianReviewBot]

The automated review has not found any issues with your code, ready for manual review.

[joethei]

Copyright (c) 2023 xRyul
Update this

import moment from "moment";
Import this through the Obsidian package instead.

const suggestionContainer = actionContainer.createDiv('suggestion-container');
Implement a AbstractInputSuggest for this instead.

containerEl.createEl('p', {
This should not be here, if you want to include it on your settings tab then put it in the footer.
While it's not explicitly mentioned in our guidelines, it does look out of place at the top compared to app settings.
https://docs.obsidian.md/Plugins/Releasing/Plugin+guidelines#UI+text

containerEl.createEl('h3', {text: 'Actions'});
Use sentence case in UI

.setButtonText('Add Action')
Use sentence case in UI

export async function propertyUpdater(
Use the processFrontMatter function instead of manually modifying the YAML.