rename `project_directory` to `folder`

This will match this with other modules.
This is a breaking change and all templates
using this module should update.

jetbrains-gateway/README.md

@@ -16,7 +16,7 @@ module "jetbrains_gateway" {
   source         = "https://registry.coder.com/modules/jetbrains-gateway"
   agent_id       = coder_agent.example.id
   agent_name     = "example"
-  project_directory        = "/home/coder/example"
+  folder         = "/home/coder/example"
   jetbrains_ides = ["GO", "WS", "IU", "IC", "PY", "PC", "PS", "CL", "RM", "DB", "RD"]
 }
 ```
@@ -32,7 +32,7 @@ module "jetbrains_gateway" {
   source          = "https://registry.coder.com/modules/jetbrains-gateway"
   agent_id        = coder_agent.example.id
   agent_name      = "example"
-  project_directory        = "/home/coder/example"
+  folder          = "/home/coder/example"
   jetbrains_ides  = ["GO", "WS"]
   default         = "GO"
 }

jetbrains-gateway/main.test.ts

@@ -1,7 +1,5 @@
-import { describe, expect, it } from "bun:test";
+import { describe } from "bun:test";
 import {
-  executeScriptInContainer,
-  runTerraformApply,
   runTerraformInit,
   testRequiredVariables,
 } from "../test";
@@ -12,7 +10,7 @@ describe("jetbrains-gateway`", async () => {
   await testRequiredVariables(import.meta.dir, {
     agent_id: "foo",
     agent_name: "bar",
-    project_directory: "/baz/",
+    folder: "/baz/",
     jetbrains_ides: '["IU", "IC", "PY"]',
   });
 });

jetbrains-gateway/main.tf

@@ -19,7 +19,7 @@ variable "agent_name" {
   description = "The name of a Coder agent."
 }
 
-variable "project_directory" {
+variable "folder" {
   type        = string
   description = "The directory to open in the IDE. e.g. /home/coder/project"
 }
@@ -146,7 +146,7 @@ resource "coder_app" "gateway" {
     "&agent=",
     var.agent_name,
     "&folder=",
-    var.project_directory,
+    var.folder,
     "&url=",
     data.coder_workspace.me.access_url,
     "&token=",