feat: error handling (#3)

### Explanation

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### Issue

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### Attestations

- [x] I have read and agree to the [Code of Conduct](https://docs.nhcarrigan.com/community/coc/)
- [x] I have read and agree to the [Community Guidelines](https://docs.nhcarrigan.com/community/guide/).
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### Dependencies

- [ ] I have pinned the dependencies to a specific patch version.

### Style

- [x] I have run the linter and resolved any errors.
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### Tests

- [ ] My contribution adds new code, and I have added tests to cover it.
- [ ] My contribution modifies existing code, and I have updated the tests to reflect these changes.
- [ ] All new and existing tests pass locally with my changes.
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Reviewed-on: nhcarrigan/cordelia-taryne#3
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

src/utils/replyToError.ts

@@ -0,0 +1,38 @@
+/**
+ * @copyright nhcarrigan
+ * @license Naomi's Public License
+ * @author Naomi Carrigan
+ */
+import {
+  ActionRowBuilder,
+  ButtonBuilder,
+  ButtonStyle,
+  type ChatInputCommandInteraction,
+  type MessageContextMenuCommandInteraction,
+} from "discord.js";
+
+/**
+ * Responds to an interaction with a generic error message.
+ * @param interaction -- The interaction payload from Discord.
+ */
+export const replyToError = async(
+  interaction:
+    | ChatInputCommandInteraction
+    | MessageContextMenuCommandInteraction,
+): Promise<void> => {
+  const button = new ButtonBuilder().setLabel("Need help?").
+    setStyle(ButtonStyle.Link).
+    setURL("https://chat.nhcarrigan.com");
+  const row = new ActionRowBuilder<ButtonBuilder>().addComponents(button);
+  if (interaction.deferred || interaction.replied) {
+    await interaction.editReply({
+      components: [ row ],
+      content:    "An error occurred while running this command.",
+    });
+    return;
+  }
+  await interaction.reply({
+    components: [ row ],
+    content:    "An error occurred while running this command.",
+  });
+};