Migrate oauth tokens module to pinia store

src/stores/oauth_tokens.js

@@ -0,0 +1,24 @@
+import { defineStore } from 'pinia'
+
+export const useOAuthTokensStore = defineStore('oauthTokens', {
+  state: () => ({
+    tokens: []
+  }),
+  actions: {
+    fetchTokens () {
+      window.vuex.state.api.backendInteractor.fetchOAuthTokens().then((tokens) => {
+        this.swapTokens(tokens)
+      })
+    },
+    revokeToken (id) {
+      window.vuex.state.api.backendInteractor.revokeOAuthToken({ id }).then((response) => {
+        if (response.status === 201) {
+          this.swapTokens(this.tokens.filter(token => token.id !== id))
+        }
+      })
+    },
+    swapTokens (tokens) {
+      this.tokens = tokens
+    }
+  }
+});