feat: added home button on error page (#2330)

* Added redirect on error page if user id not present as users keep getting stuck

lnbits/static/js/service-worker.js

@@ -1,6 +1,6 @@
 // update cache version every time there is a new deployment
 // so the service worker reinitializes the cache
-const CACHE_VERSION = 122
+const CACHE_VERSION = 123
 const CURRENT_CACHE = `lnbits-${CACHE_VERSION}-`
 
 const getApiKey = request => {

lnbits/templates/error.html

@@ -13,18 +13,28 @@
           ></q-icon>
 
           <h5 class="q-my-none">{{ err }}</h5>
-          <h4>
+
-            If you believe this shouldn't be an error please bring it up on
-            https://t.me/lnbits
-          </h4>
           <br />
+          <div class="row">
+            <div class="col">
               <q-btn
                 @click="goBack"
                 color="grey"
                 outline
                 label="Back"
-            class="full-width"
+                style="width: 100%"
               ></q-btn>
+            </div>
+            <div class="col">
+              <q-btn
+                @click="goHome"
+                color="grey"
+                outline
+                label="Home"
+                style="width: 100%"
+              ></q-btn>
+            </div>
+          </div>
         </center>
       </q-card-section>
     </q-card>
@@ -42,6 +52,9 @@
       methods: {
         goBack: function () {
           window.history.back()
+        },
+        goHome: function () {
+          window.location.href = '/'
         }
       }
     })