Fix the transition as it would get stuck sometimes

- Reproduction: Open two tabs, one would load, the other one would stay on the transition while the content of the page was ready and animated

pnpm-lock.yaml

@@ -34,7 +34,7 @@ devDependencies:
   rollup-plugin-terser: 5.3.0_rollup@2.7.1
   sapper: 0.27.12_svelte@3.20.1
   svelte: 3.20.1
-  svelte-preprocess: 3.7.2_svelte@3.20.1
+  svelte-preprocess: 3.7.3_480b73828c00a99ece9025e574514fef
 lockfileVersion: 5.1
 packages:
   /@babel/code-frame/7.8.3:
@@ -3604,21 +3604,56 @@ packages:
     dev: false
     resolution:
       integrity: sha512-3MobAvIUe345ZNREDvy/3tsfZMzPcSW+fE7osCVtGOAFeQ25haqQoZhT2c6qxxnWB7oVlTXTHCfEatzAGJi0fQ==
-  /svelte-preprocess/3.7.2_svelte@3.20.1:
+  /svelte-preprocess/3.7.3_480b73828c00a99ece9025e574514fef:
     dependencies:
+      '@babel/core': 7.9.0
       '@types/pug': 2.0.4
       '@types/sass': 1.16.0
       detect-indent: 6.0.0
+      node-sass: 4.13.1
+      postcss: 7.0.27
+      postcss-load-config: 2.1.0
       strip-indent: 3.0.0
       svelte: 3.20.1
     dev: true
     engines:
       node: '>= 7.6.0'
     peerDependencies:
+      '@babel/core': ^7.8.4
+      coffeescript: ^2.5.1
+      less: ^3.10.3
+      node-sass: ^4.13.1
+      postcss: ^7.0.26
+      postcss-load-config: ^2.1.0
+      pug: ^2.0.4
+      sass: ^1.26.3
+      stylus: ^0.54.7
       svelte: ^3.18.1
+      typescript: ^3.7.5
+    peerDependenciesMeta:
+      '@babel/core':
+        optional: true
+      coffeescript:
+        optional: true
+      node-sass:
+        optional: true
+      postcss:
+        optional: true
+      postcss-load-config:
+        optional: true
+      pug:
+        optional: true
+      sass:
+        optional: true
+      stylus:
+        optional: true
+      svelte:
+        optional: true
+      typescript:
+        optional: true
     requiresBuild: true
     resolution:
-      integrity: sha512-VQplwZyw35H80YA3NQVHXcS3E/19odBnwwqvk0NbWGO4KP5cWYtZwb6nBYgJ0J1HZpQ48WXtqzpVZYazc+dYEA==
+      integrity: sha512-Ak2S1osFgu4Gf+4Fqya1zZ3sAcAcjv38RYvt7m0syKQwqd8ITsgsVRWcUysC1MjQMvrDqqTD3slFFnI6C0oOHA==
   /svelte/3.20.1:
     dev: true
     engines:
@@ -3923,5 +3958,5 @@ specifiers:
   sirv: ^0.4.2
   svelte: ^3.20.1
   svelte-lazy: ^0.1.10
-  svelte-preprocess: ^3.7.1
+  svelte-preprocess: ^3.7.3
   swipe-listener: ^1.1.0