feat: new page UI + db fixes + installer improvements

server/views/new.pug

@@ -0,0 +1,16 @@
+extends master.pug
+
+block body
+  #root.is-fullscreen
+    v-app
+      .newpage
+        .newpage-content
+          img.animated.fadeIn(src='/svg/henry-thinking.svg', alt='Henry')
+          .headline= t('newpage.title')
+          .subheading.mt-3= t('newpage.subtitle')
+          v-btn.mt-5(href='/e/home', large)
+            v-icon(left) add
+            span= t('newpage.create')
+          v-btn.mt-2(color='blue lighten-4', href='javascript:window.history.go(-1);', large, outline)
+            v-icon(left) arrow_back
+            span= t('newpage.goback')

server/views/welcome.pug

@@ -4,9 +4,10 @@ block body
   #root.is-fullscreen
     v-app
       .onboarding
-        img.animated.fadeIn(src='/svg/logo-wikijs.svg', alt='Wiki.js')
-        .headline= t('welcome.title')
-        .subheading.mt-3= t('welcome.subtitle')
-        v-btn.mt-5(color='primary', href='/e/home', large)
-          v-icon(left) add
-          span= t('welcome.createhome')
+        .onboarding-content
+          img.animated.fadeIn(src='/svg/logo-wikijs.svg', alt='Wiki.js')
+          .headline= t('welcome.title')
+          .subheading.mt-3= t('welcome.subtitle')
+          v-btn.mt-5(color='primary', href='/e/home', large)
+            v-icon(left) add
+            span= t('welcome.createhome')