fix: plugin install uri

- the existing uri handling asks for url, workspace name and so on each time a coder toolbox URI is executed.
- however there are cases where users simply want to install the plugin via jetbrains://gatway/com.coder.toolbox
- in that case there is no point to ask for the coder deployment details.

Author: fioan89

src/main/kotlin/com/coder/toolbox/util/CoderProtocolHandler.kt

@@ -43,6 +43,10 @@ open class CoderProtocolHandler(
         reInitialize: suspend (CoderRestClient, CoderCLIManager) -> Unit
     ) {
         val params = uri.toQueryParameters()
+        if (params.isEmpty()) {
+            // probably a plugin installation scenario
+            return
+        }
 
         val deploymentURL = params.url() ?: askUrl()
         if (deploymentURL.isNullOrBlank()) {