Add .gitignore, updated config.ts, makefile, and npm package file updates

.gitignore

@@ -1,3 +1,9 @@
+# Ignore everything under src/content, as they are dynamically added from obsidian
+src/content/*
+
+# Do not ignore config.ts in src/content since that necessary to import the dynamic content
+!src/content/config.ts
+
 # build output
 dist/
 
@@ -21,4 +27,4 @@ pnpm-debug.log*
 .DS_Store
 
 # jetbrains setting folder
-.idea/
+.idea/