chore(monorepo/client): move client source files

apps/client/src/widgets/scroll_padding.ts

@@ -0,0 +1,33 @@
+import NoteContextAwareWidget from "./note_context_aware_widget.js";
+
+const TPL = /*html*/`<div class="scroll-padding-widget"></div>`;
+
+export default class ScrollPaddingWidget extends NoteContextAwareWidget {
+
+    private $scrollingContainer!: JQuery<HTMLElement>;
+
+    isEnabled() {
+        return super.isEnabled() && ["text", "code"].includes(this.note?.type ?? "");
+    }
+
+    doRender() {
+        this.$widget = $(TPL);
+        this.contentSized();
+
+        this.$widget.on("click", () => this.triggerCommand("scrollToEnd", { ntxId: this.ntxId }));
+    }
+
+    initialRenderCompleteEvent() {
+        this.$scrollingContainer = this.$widget.closest(".scrolling-container");
+
+        new ResizeObserver(() => this.refreshHeight()).observe(this.$scrollingContainer[0]);
+
+        this.refreshHeight();
+    }
+
+    refreshHeight() {
+        const containerHeight = this.$scrollingContainer.height();
+
+        this.$widget.css("height", Math.round((containerHeight ?? 0) / 2));
+    }
+}