build: Use a single modrinth_project_id property

Author: BlayTheNinth

fabric/build.gradle

@@ -131,7 +131,7 @@ task curseforge(type: net.darkhax.curseforgegradle.TaskPublishCurseForge) {
 
 modrinth {
 	token = project.findProperty("modrinth.token") ?: System.getenv("MODRINTH_TOKEN") ?: "none"
-	projectId = project.modrinth_fabric_project_id
+	projectId = project.modrinth_project_id
 	versionType = project.modrinth_release_type
 	versionNumber = project.version + "+fabric-" + project.minecraft_version
 	uploadFile = remapJar

forge/build.gradle

@@ -243,7 +243,7 @@ task curseforge(type: net.darkhax.curseforgegradle.TaskPublishCurseForge) {
 
 modrinth {
     token = project.findProperty("modrinth.token") ?: System.getenv("MODRINTH_TOKEN") ?: "none"
-    projectId = project.modrinth_forge_project_id
+    projectId = project.modrinth_project_id
     versionType = project.modrinth_release_type
     versionNumber = project.version + "+forge-" + project.minecraft_version
     uploadFile = jar

gradle.properties

@@ -7,8 +7,7 @@ group = net.blay09.mods
 curseforge_release_type = release
 curseforge_project_id = 231484
 modrinth_release_type = release
-modrinth_forge_project_id = vJnhuDde
-modrinth_fabric_project_id = vJnhuDde
+modrinth_project_id = vJnhuDde
 
 # Minecraft
 minecraft_version = 1.20.1