feat: support boolean values in frontmatter

data.json

@@ -1 +1,8 @@
-{"useFrontmatterHighlight":false,"usePathHighlight":true,"frontmatterAttribute":"classification","valueToHighlight":"public","pathToHighlight":"03_ARTICLES","mySetting":"classifcation"}
+{
+  "useFrontmatterHighlight": true,
+  "usePathHighlight": false,
+  "frontmatterAttribute": "classification",
+  "valueToHighlight": "public",
+  "pathToHighlight": "03_ARTICLES",
+  "mySetting": "classification"
+}

main.ts

@@ -31,8 +31,11 @@ export default class HighlightpublicnotesPlugin extends Plugin {
       		return;
 
 		if(this.settings.useFrontmatterHighlight) {
-			const classifcation = this.app.metadataCache.getFileCache(file)?.frontmatter?.[this.settings.frontmatterAttribute]
-			if (classifcation == this.settings.valueToHighlight) {
+			const classification = this.app.metadataCache.getFileCache(file)?.frontmatter?.[this.settings.frontmatterAttribute]
+			const normalizedClassification = classification?.toString().toLowerCase()
+			const valueToHighlight = this.settings.valueToHighlight
+			const normalizedValueToHighlight = valueToHighlight?.toString().toLowerCase()
+			if (normalizedClassification == normalizedValueToHighlight) {
 				this.highlightNote()
 			} else {
 				this.unhighlightNote()
@@ -46,6 +49,10 @@ export default class HighlightpublicnotesPlugin extends Plugin {
         }
 	}
 
+	private getNoteClassification() {
+
+	}
+
 	private highlightNote() {
 		const titlebar = document.getElementsByClassName("titlebar")[0]
 		titlebar.classList.add("myalert")