fix: use slugs instead of title as basis for explorer (#652)

* use slugs instead of title as basis for explorer

* fix folder persist state, better default behaviour

* use relative path instead of full path as full path is affected by -d

* dont use title in breadcrumb if it's just index lol

quartz/processors/parse.ts

@@ -91,8 +91,9 @@ export function createFileParser(ctx: BuildCtx, fps: FilePath[]) {
         }
 
         // base data properties that plugins may use
-        file.data.slug = slugifyFilePath(path.posix.relative(argv.directory, file.path) as FilePath)
-        file.data.filePath = fp
+        file.data.filePath = file.path as FilePath
+        file.data.relativePath = path.posix.relative(argv.directory, file.path) as FilePath
+        file.data.slug = slugifyFilePath(file.data.relativePath)
 
         const ast = processor.parse(file)
         const newAst = await processor.run(ast, file)