UPD: Added confirmation popovers for delete buttons

frontend/src/views/netdb/tokens.vue

@@ -72,10 +72,18 @@
                 <b-button variant="outline-secondary" @click="cancel">
                     Abbrechen
                 </b-button>
-                <b-button v-if="new_account.parent_login_name !== null" variant="danger"
-                          @click="deleteAccount">
+                <b-button id="button-account-delete" v-if="new_account.parent_login_name !== null" variant="danger">
                     Löschen
                 </b-button>
+                <b-popover ref="popoverAccountDelete" target="button-account-delete" triggers="click" placement="bottom">
+                    <template v-slot:title>Account wirklich löschen?</template>
+                    <b-button variant="danger" @click="deleteAccount">
+                        Löschen
+                    </b-button>
+                    <b-button variant="outline-secondary" @click="$refs.popoverAccountDelete.$emit('close')">
+                        Abbrechen
+                    </b-button>
+                </b-popover>
                 <b-button variant="primary" @click="editAccount">
                     Änderungen übernehmen
                 </b-button>
@@ -193,9 +201,18 @@
                 <b-button variant="outline-secondary" @click="cancel">
                     Abbrechen
                 </b-button>
-                <b-button variant="danger" @click="deleteToken">
+                <b-button id="button-token-delete" variant="danger">
                     Löschen
                 </b-button>
+                <b-popover ref="popoverTokenDelete" target="button-token-delete" triggers="click" placement="bottom">
+                    <template v-slot:title>Token wirklich löschen?</template>
+                    <b-button variant="danger" @click="deleteToken">
+                        Löschen
+                    </b-button>
+                    <b-button variant="outline-secondary" @click="$refs.popoverTokenDelete.$emit('close')">
+                        Abbrechen
+                    </b-button>
+                </b-popover>
                 <b-button type="submit" variant="primary" @click="editToken">
                     Änderungen übernehmen
                 </b-button>