fix: address Svelte 5 warnings (#2011)

Co-authored-by: brunnerh <brunnerh@users.noreply.github.com>

src/Breakpoint/Breakpoint.svelte

@@ -40,6 +40,7 @@
     max: size == "max",
   };
   $: if (size != undefined)
+    // svelte-ignore reactive_declaration_non_reactive_property
     dispatch("change", { size, breakpointValue: breakpoints[size] });
 </script>
 

src/OverflowMenu/OverflowMenu.svelte

@@ -192,7 +192,7 @@
 <button
   bind:this="{buttonRef}"
   type="button"
-  aria-haspopup
+  aria-haspopup="true"
   aria-expanded="{open}"
   aria-label="{ariaLabel}"
   id="{id}"

src/TextInput/PasswordInput.svelte

@@ -88,7 +88,7 @@
 
   const ctx = getContext("Form");
 
-  $: isFluid = !!ctx && ctx.isFluid;
+  const isFluid = !!ctx && ctx.isFluid;
   $: helperId = `helper-${id}`;
   $: errorId = `error-${id}`;
   $: warnId = `warn-${id}`;

src/TextInput/TextInput.svelte

@@ -94,7 +94,7 @@
     dispatch("change", parse(e.target.value));
   };
 
-  $: isFluid = !!ctx && ctx.isFluid;
+  const isFluid = !!ctx && ctx.isFluid;
   $: error = invalid && !readonly;
   $: helperId = `helper-${id}`;
   $: errorId = `error-${id}`;