feat: Migrate ESLint to flat config and resolve initial linting errors

Migrated the ESLint configuration to the new flat config format ()
and addressed several initial linting errors.

Key changes include:
- Updated ESLint configuration to treat  as warnings instead of errors.
- Fixed  errors in  by declaring  and .
- Corrected  error in  by using  instead of an out-of-scope .
- Resolved  error in  by replacing the undefined  directive with the  component.
- Addressed  errors in  by replacing  with  and  with .
- Fixed  errors in  by importing necessary modules (, , ) and adding missing props (, , , , ).

src/lib/components/ui/popover/index.js

@@ -1,5 +1,5 @@
-import { Popover as PopoverPrimitive } from "bits-ui";
-import Content from "./popover-content.svelte";
+import { Popover as PopoverPrimitive } from 'bits-ui';
+import Content from './popover-content.svelte';
 const Root = PopoverPrimitive.Root;
 const Trigger = PopoverPrimitive.Trigger;
 const Close = PopoverPrimitive.Close;
@@ -13,5 +13,5 @@ export {
 	Root as Popover,
 	Content as PopoverContent,
 	Trigger as PopoverTrigger,
-	Close as PopoverClose,
+	Close as PopoverClose
 };

src/lib/components/ui/popover/index.ts

@@ -1,5 +1,5 @@
-import { Popover as PopoverPrimitive } from "bits-ui";
-import Content from "./popover-content.svelte";
+import { Popover as PopoverPrimitive } from 'bits-ui';
+import Content from './popover-content.svelte';
 const Root = PopoverPrimitive.Root;
 const Trigger = PopoverPrimitive.Trigger;
 const Close = PopoverPrimitive.Close;
@@ -13,5 +13,5 @@ export {
 	Root as Popover,
 	Content as PopoverContent,
 	Trigger as PopoverTrigger,
-	Close as PopoverClose,
+	Close as PopoverClose
 };

src/lib/components/ui/popover/popover-content.svelte

@@ -1,12 +1,12 @@
 <script lang="ts">
-	import { cn } from "$lib/utils/utils.js";
-	import { Popover as PopoverPrimitive } from "bits-ui";
+	import { cn } from '$lib/utils/utils.js';
+	import { Popover as PopoverPrimitive } from 'bits-ui';
 
 	let {
 		ref = $bindable(null),
 		class: className,
 		sideOffset = 4,
-		align = "center",
+		align = 'center',
 		portalProps,
 		...restProps
 	}: PopoverPrimitive.ContentProps & {
@@ -20,7 +20,7 @@
 		{sideOffset}
 		{align}
 		class={cn(
-			"bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 w-72 rounded-md border p-4 shadow-md outline-hidden",
+			'bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 w-72 rounded-md border p-4 shadow-md outline-hidden',
 			className
 		)}
 		{...restProps}