feature: support .spa files for Single Page Apps

deno.json

@@ -1,7 +1,7 @@
 {
 	"name": "@andyburke/serverus",
 	"description": "A flexible HTTP server for mixed content. Throw static files, markdown, Typescript and (hopefully, eventually) more into a directory and serverus can serve it up a bit more like old-school CGI.",
-	"version": "0.13.0",
+	"version": "0.14.0",
 	"license": "MIT",
 	"exports": {
 		".": "./serverus.ts",
@@ -21,10 +21,14 @@
 		"serverus": "deno --allow-env --allow-read --allow-write --allow-net ./serverus.ts"
 	},
 	"test": {
-		"exclude": ["tests/data/"]
+		"exclude": [
+			"tests/data/"
+		]
 	},
 	"fmt": {
-		"include": ["**/*.ts"],
+		"include": [
+			"**/*.ts"
+		],
 		"options": {
 			"useTabs": true,
 			"lineWidth": 140,
@@ -35,10 +39,16 @@
 		}
 	},
 	"lint": {
-		"include": ["**/*.ts"],
+		"include": [
+			"**/*.ts"
+		],
 		"rules": {
-			"tags": ["recommended"],
-			"exclude": ["no-explicit-any"]
+			"tags": [
+				"recommended"
+			],
+			"exclude": [
+				"no-explicit-any"
+			]
 		}
 	},
 	"imports": {