perf: incremental rebuild (--fastRebuild v2 but default) (#1841)

* checkpoint

* incremental all the things

* properly splice changes array

* smol doc update

* update docs

* make fancy logger dumb in ci

quartz.config.ts

@@ -57,7 +57,7 @@ const config: QuartzConfig = {
     transformers: [
       Plugin.FrontMatter(),
       Plugin.CreatedModifiedDate({
-        priority: ["frontmatter", "filesystem"],
+        priority: ["git", "frontmatter", "filesystem"],
       }),
       Plugin.SyntaxHighlighting({
         theme: {