chore: migrate oxlint & oxfmt (#15464)

#### PR Dependency Tree


* **PR #15464** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Chores**
* Replaced the project’s formatting and linting workflow with Oxfmt and
Oxlint.
* Added shared formatting and linting configuration, editor integration,
and updated automated checks.
* Updated generated files, scripts, and lint guidance to use the new
tooling.

* **Style**
* Reformatted templates, source code, examples, and configuration files
for consistent readability.
  * No user-facing functionality or rendering behavior changed.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

blocksuite/affine/components/src/date-picker/date-picker.ts

@@ -178,18 +178,20 @@ export class DatePicker extends WithDisposable(LitElement) {
             </div>`
         )}
       </div>
-      ${this.onClear
-        ? html`<div class="date-picker-footer">
-            <button
-              tabindex="0"
-              aria-label="clear"
-              class="footer-button interactive"
-              @click=${() => this.onClear?.()}
-            >
-              Clear
-            </button>
-          </div>`
-        : nothing}`;
+      ${
+        this.onClear
+          ? html`<div class="date-picker-footer">
+              <button
+                tabindex="0"
+                aria-label="clear"
+                class="footer-button interactive"
+                @click=${() => this.onClear?.()}
+              >
+                Clear
+              </button>
+            </div>`
+          : nothing
+      }`;
   }
 
   /** Week header */