Make code-first user template have same SDK version as in precompiled WASM (#320)

* Fix decorator to be lowercase and bug fix on template package json

* Upgrade to sdk 12

Author: afsalthaj

golem-templates/templates/js/js-app-common/package.json

@@ -8,7 +8,7 @@
   ],
   "dependencies": {
     "@golemcloud/golem-ts": "1.5.0",
-    "@golemcloud/golem-ts-sdk": "0.0.1-dev.3",
+    "@golemcloud/golem-ts-sdk": "0.0.1-dev.12",
     "rttist": "^1.0.0-rc.4"
   },
   "devDependencies": {

golem-templates/templates/ts/ts-app-common/package.json

@@ -8,7 +8,7 @@
   ],
   "dependencies": {
     "@golemcloud/golem-ts": "1.5.0",
-    "@golemcloud/golem-ts-sdk": "0.0.1-dev.3",
+    "@golemcloud/golem-ts-sdk": "0.0.1-dev.12",
     "rttist": "^1.0.0-rc.4"
   },
   "devDependencies": {

golem-templates/templates/ts/ts-app-common/wasm/golem_agent.wasm

@@ -1,14 +1,14 @@
 import {
     BaseAgent,
-    Agent,
-    Prompt,
-    Description,
+    agent,
+    prompt,
+    description,
 } from '@golemcloud/golem-ts-sdk';
 
-@Agent()
+@agent()
 class AssistantAgent extends BaseAgent {
-    @Prompt("Ask your question")
-    @Description("This method allows the agent to answer your question")
+    @prompt("Ask your question")
+    @description("This method allows the agent to answer your question")
     async ask(name: string): Promise<string> {
         const customData = { data: "Sample data", value: 42 };
 
@@ -26,7 +26,7 @@ class AssistantAgent extends BaseAgent {
     }
 }
 
-@Agent()
+@agent()
 class WeatherAgent extends BaseAgent {
     private readonly userName: string;
 
@@ -35,8 +35,8 @@ class WeatherAgent extends BaseAgent {
         this.userName = username;
     }
 
-    @Prompt("Get weather")
-    @Description("Weather forecast weather for you")
+    @prompt("Get weather")
+    @description("Weather forecast weather for you")
     async getWeather(name: string, param2: CustomData): Promise<string> {
         return Promise.resolve(
             `Hi ${this.userName} Weather in ${name} is sunny. Params passed: ${name} ${JSON.stringify(param2)}. ` +