Add unit tests for Gotify adapter message sending functionality

- Implemented tests for sending messages with default and custom tokens.
- Added tests for handling different priority levels and content types.
- Included error handling test for axios request failures.
- Updated the Gotify message interface to support an optional token parameter.
- Modified the sendMessage method to utilize the custom token if provided.

Author: ThomasPohl

README.md

@@ -17,56 +17,66 @@ Send push notifications from [ioBroker](https://iobroker.net/) to [Gotify](https
 
 ## Changelog
 
+<!--
+    Placeholder for the next version (at the beginning of the line):
+    ## **WORK IN PROGRESS**
+-->
+
+## **WORK IN PROGRESS**
+
+- (Thomas Pohl) Allow to overwrite token when sending messages (javascript only not for blockly)
+- (Thomas Pohl) Update dependencies
+
 ### 0.4.0
 
--   (Thomas Pohl) Support for notification-manager was added
--   (Thomas Pohl) Blockly can now send messages with priority 10
+- (Thomas Pohl) Support for notification-manager was added
+- (Thomas Pohl) Blockly can now send messages with priority 10
 
 ### 0.3.0
 
--   (Thomas Pohl) The token is stored now encrypted
--   (Thomas Pohl) node.js 22 is supported
+- (Thomas Pohl) The token is stored now encrypted
+- (Thomas Pohl) node.js 22 is supported
 
 ### 0.2.1
 
--   (Thomas Pohl) Optimized startup behavior when adapter is not configured
+- (Thomas Pohl) Optimized startup behavior when adapter is not configured
 
 ### 0.2.0
 
--   (Thomas Pohl) Add timeout for http calls
--   (Thomas Pohl) Update dependency versions
+- (Thomas Pohl) Add timeout for http calls
+- (Thomas Pohl) Update dependency versions
 
 ### 0.1.0
 
--   (Thomas Pohl) Update to adapter-core 2.5.1
+- (Thomas Pohl) Update to adapter-core 2.5.1
 
 ### 0.0.2-RC1.0 (2022-02-09)
 
--   (Thomas Pohl) Update dependencies
+- (Thomas Pohl) Update dependencies
 
 ### 0.0.1
 
--   (Thomas Pohl) initial release
+- (Thomas Pohl) initial release
 
 ## Installation
 
 ### Preparation
 
--   Login with you user in gotify
--   Create an application for ioBroker
--   Note the token of your new application
-    ![new application](img/newApplication.png)
+- Login with you user in gotify
+- Create an application for ioBroker
+- Note the token of your new application
+  ![new application](img/newApplication.png)
 
 ### In ioBroker
 
--   Goto Adapter
--   Click on github-cat-icon
--   Go to Custom tab
--   Enter https://github.com/ThomasPohl/ioBroker.gotify
--   Install
--   Create a new instance for the gotify-adapter
--   Enter the Url auf you installation
--   Add the previously created token
+- Goto Adapter
+- Click on github-cat-icon
+- Go to Custom tab
+- Enter https://github.com/ThomasPohl/ioBroker.gotify
+- Install
+- Create a new instance for the gotify-adapter
+- Enter the Url auf you installation
+- Add the previously created token
 
 ## Usage
 
@@ -79,10 +89,24 @@ If yoou choose Markdown as format you can use [Markdown](https://guides.github.c
 
 ### Javascript
 
+Send a simple message using the default token:
+
+```javascript
+sendTo('gotify.0', 'send', {
+    title: 'DG lüften',
+    message: 'Luftfeuchtigkeit im DG zu hoch!',
+});
+```
+
+Send a message with a custom token (overrides the configured default token):
+
 ```javascript
-sendTo("gotify.0", "send", {
-    title: "DG lüften",
-    message: "Luftfeuchtigkeit im DG zu hoch!",
+sendTo('gotify.0', 'send', {
+    title: 'Custom notification',
+    message: 'This message uses a different token',
+    priority: 8,
+    contentType: 'text/markdown',
+    token: 'AaBbCcDdEeFfGg123456',
 });
 ```
 

io-package.json

@@ -146,7 +146,7 @@
             "type": "state",
             "common": {
                 "name": {
-                    "en": "Connected to Gotify server",
+                    "en": "Connection to Gotify server",
                     "de": "Verbindung mit Gotify Server",
                     "ru": "Подключен к серверу Gotify",
                     "pt": "Conectado ao servidor Gotify",