Fix PWA build errors

Signed-off-by: Justin Georgi <justin.georgi@gmail.com>

src/components/app.vue

@@ -146,7 +146,7 @@
 
         // Register service worker (only on production build)
         serviceWorker: process.env.NODE_ENV ==='production' ? {
-          path: '/service-worker.js',
+          path: './service-worker.js',
         } : {},
 
         // Input settings

src/index.html

@@ -10,7 +10,7 @@
     * Disables use of inline scripts in order to mitigate risk of XSS vulnerabilities. To change this:
       * Enable inline JS: add 'unsafe-inline' to default-src
   -->
-  <meta http-equiv="Content-Security-Policy" content="worker-src blob:;  child-src blob: gap:; img-src 'self' blob: data:; default-src * 'self' 'unsafe-inline' 'unsafe-eval' data: content:">
+  <meta http-equiv="Content-Security-Policy" content="worker-src 'self' blob:;  child-src blob: gap:; img-src 'self' blob: data:; default-src * 'self' 'unsafe-inline' 'unsafe-eval' data: content:">
   <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no, viewport-fit=cover">
 
   <meta name="theme-color" content="#fff">

src/manifest.json

@@ -9,32 +9,32 @@
   "theme_color": "#002f65",
   "icons": [
     {
-      "src": "/icons/128x128.png",
+      "src": "../icons/128x128.png",
       "sizes": "128x128",
       "type": "image/png"
     },
     {
-      "src": "/icons/144x144.png",
+      "src": "../icons/144x144.png",
       "sizes": "144x144",
       "type": "image/png"
     },
     {
-      "src": "/icons/152x152.png",
+      "src": "../icons/152x152.png",
       "sizes": "152x152",
       "type": "image/png"
     },
     {
-      "src": "/icons/192x192.png",
+      "src": "../icons/192x192.png",
       "sizes": "192x192",
       "type": "image/png"
     },
     {
-      "src": "/icons/256x256.png",
+      "src": "../icons/256x256.png",
       "sizes": "256x256",
       "type": "image/png"
     },
     {
-      "src": "/icons/512x512.png",
+      "src": "../icons/512x512.png",
       "sizes": "512x512",
       "type": "image/png"
     }