Upgrade dependencies, add strictNullChecks.

Author: lishid

package.json

@@ -13,12 +13,12 @@
 	"license": "MIT",
 	"devDependencies": {
 		"@types/node": "^16.11.6",
-		"@typescript-eslint/eslint-plugin": "^5.2.0",
-		"@typescript-eslint/parser": "^5.2.0",
-		"builtin-modules": "^3.2.0",
-		"esbuild": "0.13.12",
+		"@typescript-eslint/eslint-plugin": "5.29.0",
+		"@typescript-eslint/parser": "5.29.0",
+		"builtin-modules": "3.3.0",
+		"esbuild": "0.14.47",
 		"obsidian": "latest",
-		"tslib": "2.3.1",
-		"typescript": "4.4.4"
+		"tslib": "2.4.0",
+		"typescript": "4.7.4"
 	}
 }

tsconfig.json

@@ -10,6 +10,7 @@
     "moduleResolution": "node",
     "importHelpers": true,
     "isolatedModules": true,
+	"strictNullChecks": true,
     "lib": [
       "DOM",
       "ES5",