persist hostname in config overlay (#2769)

* persist hostname

* add migration

* fix version mismatch

* remove dmesg logging from build

web/projects/setup-wizard/src/app/services/api/mock-api.service.ts

@@ -137,6 +137,7 @@ export class MockApiService extends ApiService {
         return {
           status: 'complete',
           torAddress: 'https://asdafsadasdasasdasdfasdfasdf.onion',
+          hostname: 'adjective-noun',
           lanAddress: 'https://adjective-noun.local',
           rootCa: encodeBase64(rootCA),
         }
@@ -283,6 +284,7 @@ export class MockApiService extends ApiService {
     await pauseFor(1000)
     return {
       torAddress: 'https://asdafsadasdasasdasdfasdfasdf.onion',
+      hostname: 'adjective-noun',
       lanAddress: 'https://adjective-noun.local',
       rootCa: encodeBase64(rootCA),
     }

web/projects/ui/src/app/modals/os-welcome/os-welcome.page.html

@@ -12,7 +12,7 @@
 <ion-content class="ion-padding">
   <h2>This Release</h2>
 
-  <h4>0.3.6-alpha.6</h4>
+  <h4>0.3.6-alpha.7</h4>
   <h6>This is an ALPHA release! DO NOT use for production data!</h6>
   <h6>
     Expect that any data you create or store on this version of the OS can be