chore: update dependencies and clean up styles

- Added @codemirror/language and @lezer/common as devDependencies in package.json and package-lock.json.
- Removed inline date-calc styling and specific CodeMirror styles from styles.css for a cleaner design.

esbuild.config.mjs

@@ -3,7 +3,7 @@ import process from "process";
 import builtins from "builtin-modules";
 
 const banner =
-`/*
+	`/*
 THIS IS A GENERATED/BUNDLED FILE BY ESBUILD
 if you want to view the source, please visit the github repository of this plugin
 */
@@ -21,16 +21,8 @@ const context = await esbuild.context({
 		"obsidian",
 		"electron",
 		"@codemirror/autocomplete",
-		"@codemirror/collab",
-		"@codemirror/commands",
-		"@codemirror/language",
-		"@codemirror/lint",
-		"@codemirror/search",
-		"@codemirror/state",
-		"@codemirror/view",
-		"@lezer/common",
-		"@lezer/highlight",
-		"@lezer/lr",
+		"@codemirror/*",
+		"@lezer/*",
 		...builtins],
 	format: "cjs",
 	target: "es2018",