refactor: rework API loader and caching

This commit removes dependency on rxjs.

It also implements better composables to handle data fetching from
remote APIs and caching these values more transparently.

This commit also switches from yarn to npm

It also switches to the official Umami plugin

content/.vuepress/components/GitHub/GithubRepository.vue

@@ -6,23 +6,23 @@
       :cache-name="repoName()"
       :url="fetchUrl"
       :already-known-data="props.data"
-      @data-loaded="(repo: GithubRepo) => (repository = repo)"
+      @loaded="(repo: GithubRepo) => (repository = repo)"
     >
-      <h3>{{ repository.name }}</h3>
+      <h3>{{ repository?.name }}</h3>
       <div>
         <p>
-          {{ repository.description }}
+          {{ repository?.description }}
         </p>
       </div>
       <div class="flex-row flex-start gap-1rem stats">
         <div class="stars">
-          <Icon name="star" /> {{ repository.stargazers_count }}
+          <Icon name="star" /> {{ repository?.stargazers_count }}
         </div>
         <div class="forks">
-          <Icon name="fork" /> {{ repository.forks_count }}
+          <Icon name="fork" /> {{ repository?.forks_count }}
         </div>
         <div class="link">
-          <a :href="repository.html_url"><i class="icon phunic-link" /></a>
+          <a :href="repository?.html_url"><i class="icon phunic-link" /></a>
         </div>
       </div>
     </ApiLoader>
@@ -32,7 +32,7 @@
 <script setup lang="ts">
 import ApiLoader from '../ApiLoader.vue';
 
-import { GithubRepo } from '../../composables/github';
+import { GithubRepo } from '../../types/github';
 import { PropType, Ref, ref } from 'vue';
 
 const props = defineProps({
@@ -45,7 +45,7 @@ const repoName = (): string => {
 };
 
 const fetchUrl = `https://api.github.com/repos/${repoName()}`;
-const repository: Ref<GithubRepo> = ref(null);
+const repository: Ref<GithubRepo | null> = ref(null);
 </script>
 
 <style lang="less">
@@ -78,5 +78,12 @@ const repository: Ref<GithubRepo> = ref(null);
       gap: 0.3rem;
     }
   }
+
+  .link {
+    a {
+      display: flex;
+      align-items: center;
+    }
+  }
 }
 </style>