Set decompiler's heap size to 3 GiB

The default on my laptop (with 8 GiB of RAM, so presumably a 2 GiB heap)
is too small.

.idea/runConfigurations/Decompiler.xml

@@ -1,7 +1,7 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="Decompiler" type="JetRunConfigurationType" factoryName="Kotlin">
     <module name="openrs2.decompiler.main" />
-    <option name="VM_PARAMETERS" value="" />
+    <option name="VM_PARAMETERS" value="-Xmx3G" />
     <option name="PROGRAM_PARAMETERS" value="" />
     <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
     <option name="ALTERNATIVE_JRE_PATH" />

decompiler/build.gradle.kts

@@ -6,6 +6,7 @@ plugins {
 
 application {
     mainClassName = "dev.openrs2.decompiler.DecompilerKt"
+    applicationDefaultJvmArgs = listOf("-Xmx3G")
 }
 
 dependencies {