TreeNodeEditor | Cast -> Nadpis casti

vue_frontend/src/components/AddNewNode.vue

@@ -1,6 +1,6 @@
 <template>
 	<div class="addnewnode">
-		<button v-if="types.includes('castNode')" v-on:click="selected='castNode'" :disabled="selected && selected !== 'castNode'">Část</button>
+		<button v-if="types.includes('castNode')" v-on:click="selected='castNode'" :disabled="selected && selected !== 'castNode'">Nadpis části</button>
 		<button v-if="types.includes('textNode')" v-on:click="selected='textNode'" :disabled="selected && selected !== 'textNode'">Text</button>
 		<button v-if="types.includes('reseniNode')" v-on:click="selected='reseniNode'" :disabled="selected && selected !== 'reseniNode'">Řešení</button>
 		<button v-if="types.includes('ulohaZadaniNode')" v-on:click="selected='ulohaZadaniNode'" :disabled="selected && selected !== 'ulohaZadaniNode'">Zadání úlohy</button>