feat: unify collection creation

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

src/pages/ChronoPage.vue

@@ -212,6 +212,7 @@ function selectSectionFromRoute() {
             :collections="collections"
             :selected-collection="selectedCollection"
             type="calendar"
+            @create="openCollectionEditor('calendar')"
             @select="selectCollection"
             @edit="openCollectionEditor('calendar', $event)"
             @toggle-visibility="toggleCalendarVisibility"
@@ -221,34 +222,11 @@ function selectSectionFromRoute() {
             :collections="collections"
             :selected-collection="selectedCollection"
             type="tasklist"
+            @create="openCollectionEditor('tasklist')"
             @select="selectCollection"
             @edit="openCollectionEditor('tasklist', $event)"
           />
           
-          <v-btn
-            v-if="!isTasksSection"
-            variant="tonal"
-            color="primary"
-            block
-            class="mt-3"
-            @click="openCollectionEditor('calendar')"
-          >
-            <v-icon start>mdi-plus</v-icon>
-            New Calendar
-          </v-btn>
-
-          <v-btn
-            v-else
-            variant="tonal"
-            color="primary"
-            block
-            class="mt-3"
-            @click="openCollectionEditor('tasklist')"
-          >
-            <v-icon start>mdi-plus</v-icon>
-            New Task List
-          </v-btn>
-
           <v-divider class="my-3" />
           <v-btn variant="text" prepend-icon="mdi-calendar-import" block class="justify-start" @click="handleImportStart">
             Import iCalendar