Add error handling and improve file upload UX

src/components/dashboard/UploadModal.svelte

@@ -21,19 +21,21 @@
     import {createEventDispatcher} from "svelte";
     import {schemRepo} from "@repo/schem.ts";
     import SWModal from "@components/styled/SWModal.svelte";
-    import {t} from "astro-i18n"
+    import {t} from "astro-i18n";
 
     const dispatch = createEventDispatcher();
 
-  interface Props {
-    open?: boolean;
-  }
+    interface Props {
+        open?: boolean;
+    }
 
-  let { open = $bindable(false) }: Props = $props();
+    let {open = $bindable(false)}: Props = $props();
 
-    async function upload() {
+    async function upload(e: Event) {
+        e.stopPropagation();
         if (uploadFile == null) {
-            return
+            error = "dashboard.schematic.errors.noFile";
+            return;
         }
         let file = uploadFile[0];
 
@@ -42,33 +44,46 @@
         let type = name.split(".").pop();
 
         if (type !== "schem" && type !== "schematic") {
-            return
+            error = "dashboard.schematic.errors.invalidEnding";
+            return;
         }
 
         let content = await file.arrayBuffer();
 
-        // @ts-ignore
         let b64 = btoa(String.fromCharCode.apply(null, new Uint8Array(content)));
 
-        let response = await $schemRepo.uploadSchematic(name, b64);
+        try {
+            await $schemRepo.uploadSchematic(name, b64);
 
-        open = false;
+            open = false;
+            value = "";
+            dispatch("reset");
+        } catch (e) {
+            error = "dashboard.schematic.errors.upload";
+        }
+    }
+
+    function reset(e: Event) {
+        e.stopPropagation();
+        open = false
         value = "";
-        dispatch("reset")
     }
 
     let uploadFile: FileList | null = $state(null);
     let value = $state("");
+    let error = $state(null)
 </script>
 
 <SWModal title={t("dashboard.schematic.title")} bind:open>
     <form>
-        <input type="file" bind:files={uploadFile} bind:value />
+        <label for="schem-upload">{t("dashboard.schematic.title")}</label>
+        <input type="file" id="schem-upload" bind:files={uploadFile} class="overflow-ellipsis" bind:value accept=".schem, .schematic"/>
+        {#if error !== null}
+            <p class="text-red-400">{t(error)}</p>
+        {/if}
     </form>
     {#snippet footer()}
-  
-          <button class="btn !ml-auto" onclick={upload}>{t("dashboard.schematic.upload")}</button>
-          <button class="btn btn-gray" onclick={() => open = false}>{t("dashboard.schematic.cancel")}</button>
-      
-  {/snippet}
+        <button class="btn" onclick={upload}>{t("dashboard.schematic.upload")}</button>
+        <button class="btn btn-gray" onclick={reset}>{t("dashboard.schematic.cancel")}</button>
+    {/snippet}
 </SWModal>