feat(docs): add download verification guide (#449)

.changeset/old-feet-hear.md

@@ -0,0 +1,5 @@
+---
+'@cypherock/cysync-desktop': patch
+---
+
+Add a guide for verifying app downloads to the README.

README.md

@@ -3,11 +3,42 @@
 ## Table of contents
 
 1. [Prerequisites](#prerequisites)
-2. [Understanding the directory structure](#understanding-the-directory-structure)
-3. [Development Setup](#development-setup)
-4. [Local setup](#local-setup)
-5. [Other commands](#other-commands)
-6. [Contributing](#contributing)
+2. [Verifying Your CySync Download](#verifying-your-cysync-download)
+3. [Understanding the directory structure](#understanding-the-directory-structure)
+4. [Development Setup](#development-setup)
+5. [Local setup](#local-setup)
+6. [Other commands](#other-commands)
+7. [Contributing](#contributing)
+
+## Verifying Your CySync Download
+
+To ensure the CySync application you downloaded is legitimate and has not been corrupted, you should verify its checksum. This process confirms the file's integrity.
+
+Each release on the [official releases page](https://github.com/Cypherock/cypherock-cysync/releases) includes a `sha256sum.txt` file containing the correct checksums for the application files.
+
+**Steps to Verify:**
+
+1. Download the CySync application for your system (e.g., `CySync-2.2.0.AppImage`) and the corresponding `sha256sum.txt` file from the same release.
+
+2. Open a terminal or command prompt and navigate to the folder where you downloaded the files.
+
+3. Run the appropriate command for your operating system:
+
+   - **On Linux and macOS:**
+
+     ```bash
+     sha256sum CySync-2.2.0.AppImage
+     ```
+
+   - **On Windows (using PowerShell):**
+     ```powershell
+     Get-FileHash -Algorithm SHA256 .\CySync-2.2.0.exe
+     ```
+     _(Replace the filename with the one you downloaded)_
+
+4. Compare the long string of characters (the hash) generated by the command with the hash listed inside the `sha256sum.txt` file.
+
+**If they match exactly, your download is authentic and safe to use!** If they don't match, do not run the application and try downloading it again.
 
 ## Prerequisites
 

packages/cysync-core/src/dialogs/Send/Dialogs/Components/AddressAndAmountSection/SingleTransaction.tsx

@@ -18,6 +18,7 @@ import { BigNumber } from '@cypherock/cysync-utils';
 import { AccountTypeMap } from '@cypherock/db-interfaces';
 import React, { useEffect, useState } from 'react';
 
+import { useCurrency } from '~/context';
 import { selectLanguage, useAppSelector } from '~/store';
 
 import { AddressInput } from './AddressInput';
@@ -28,7 +29,6 @@ import { NotesInput } from './NotesInput';
 import { StellarMemoInput } from './StellarMemoInput';
 
 import { useSendDialog } from '../../../context';
-import { useCurrency } from '~/context';
 
 const MAX_UINT64 = new BigNumber('0xffffffffffffffff');
 

packages/cysync-core/src/dialogs/SwapDialog.tsx

@@ -21,8 +21,8 @@ import {
 } from '@cypherock/cysync-ui';
 import { SwapStatus } from '@cypherock/db-interfaces';
 import React, { FC, useMemo } from 'react';
-import { useSwap } from '~/context';
 
+import { useSwap } from '~/context';
 import { SwapTransactionRowData, useSwapTransactions } from '~/hooks';
 import {
   closeDialog,

packages/cysync-core/src/services/swapService.ts

@@ -1,5 +1,6 @@
-import axios from 'axios';
 import { SupportedProviders } from '@cypherock/db-interfaces';
+import axios from 'axios';
+
 import { config } from '../config';
 
 const SUPPORTED_PROVIDERS = Object.values(SupportedProviders) as string[];