refactor: simplify file import handling in App component

- Replace manual file input handling with pickFileAsText utility for importing settings from local JSON files.
- Enhance error handling for file reading failures.
- Streamline code for better readability and maintainability.

Author: jqknono

src/core/webview/webviewMessageHandler.ts

@@ -776,28 +776,20 @@ export const webviewMessageHandler = async (
 		case "importSettingsFromLocal": {
 			const content = message.text || ""
 			if (!content) {
-				vscode.window.showErrorMessage(t("common:errors.message.no_local_settings_content"))
+				vscode.window.showErrorMessage(t("common:errors.settings_import_failed"))
 				break
 			}
 
-			try {
-				await importSettingsWithFeedback(
-					{
-						providerSettingsManager: provider.providerSettingsManager,
-						contextProxy: provider.contextProxy,
-						customModesManager: provider.customModesManager,
-						provider: provider,
-					},
-					{ fileContents: content },
-				)
-			} catch (error) {
-				console.error("Error importing settings from local file:", error)
-				vscode.window.showErrorMessage(
-					t("common:errors.settings_import_failed", {
-						error: error instanceof Error ? error.message : String(error),
-					}),
-				)
-			}
+			await importSettingsWithFeedback(
+				{
+					providerSettingsManager: provider.providerSettingsManager,
+					contextProxy: provider.contextProxy,
+					customModesManager: provider.customModesManager,
+					provider: provider,
+				},
+				{ fileContents: content },
+			)
+
 			break
 		}
 		case "exportSettings":

src/i18n/locales/ca/common.json

@@ -95,8 +95,7 @@
 			"cannot_delete_invalid_timestamp": "Cannot delete message: invalid timestamp",
 			"message_not_found": "Message with timestamp {{messageTs}} not found",
 			"error_deleting_message": "Error deleting message: {{error}}",
-			"error_editing_message": "Error editing message: {{error}}",
-			"no_local_settings_content": "No local settings file content received"
+			"error_editing_message": "Error editing message: {{error}}"
 		},
 		"gemini": {
 			"generate_stream": "Gemini generate context stream error: {{error}}",