feat(dashboard): add tos/privacy/about pages, add delete all data page + endpoint

Catalogger.Frontend/src/routes/dash/[guildId]/+layout.svelte

@@ -69,6 +69,12 @@
 		>
 			Key roles
 		</NavLink>
+		<NavLink
+			href="/dash/{data.guild.id}/delete"
+			active={$page.url.pathname === `/dash/${data.guild.id}/delete`}
+		>
+			Delete all data
+		</NavLink>
 	</Nav>
 
 	{#if $page.url.pathname === `/dash/${data.guild.id}` || $page.url.pathname === `/dash/${data.guild.id}/ignored-channels`}

Catalogger.Frontend/src/routes/dash/[guildId]/delete/+page.svelte

@@ -0,0 +1,64 @@
+<script lang="ts">
+	import { Alert, Button, Input, InputGroup } from "@sveltestrap/sveltestrap";
+	import type { PageData } from "./$types";
+	import { fastFetch, type ApiError } from "$lib/api";
+	import { addToast } from "$lib/toast";
+	import { goto } from "$app/navigation";
+
+	export let data: PageData;
+
+	let guildName: string = "";
+
+	const deleteData = async () => {
+		try {
+			await fastFetch("POST", `/api/guilds/${data.guild.id}/leave`, {
+				name: guildName,
+			});
+			addToast({
+				header: "Left server",
+				body: `Successfully left ${data.guild.name} and deleted all data related to it.`,
+			});
+
+			await goto("/dash");
+		} catch (e) {
+			addToast({
+				header: "Error leaving server",
+				body: (e as ApiError).message || "Unknown error",
+			});
+		}
+	};
+</script>
+
+<h3>Delete this server's data</h3>
+
+<p>
+	To make Catalogger leave your server and delete all data from your server,
+	fill its name in below and press "Delete".
+	<br />
+	<strong>
+		This is irreversible. If you change your mind later, your data cannot be
+		restored.
+	</strong>
+	<br />
+	If you just want to make Catalogger leave your server but not delete data, simply
+	kick it via Discord.
+</p>
+
+<Alert color="danger">
+	<h4 class="alert-heading">This is irreversible!</h4>
+
+	We <strong>cannot</strong> help you recover data deleted in this way.
+</Alert>
+
+<p>
+	<InputGroup>
+		<Input type="text" placeholder="Server name" bind:value={guildName} />
+		<Button
+			color="danger"
+			disabled={guildName !== data.guild.name}
+			on:click={deleteData}
+		>
+			Delete
+		</Button>
+	</InputGroup>
+</p>