Fix previewDocs on Linux when using IntelliJ (#5)

* Fix Linux preview with IntelliJ

* Consistency fix

Author: cassiancc

src/main/java/org/moddedmc/wiki/toolkit/task/InstallDependenciesTask.java

@@ -1,10 +1,17 @@
 package org.moddedmc.wiki.toolkit.task;
 
+import org.gradle.internal.os.OperatingSystem;
 import org.gradle.work.DisableCachingByDefault;
 
 @DisableCachingByDefault
 public abstract class InstallDependenciesTask extends ExecuteCommandTask {
     public InstallDependenciesTask() {
-        getCommand().addAll("npm", "install");
+        if (OperatingSystem.current().isLinux()) {
+            getCommand().addAll("bash", "-ci", "npm install");
+        } else if (OperatingSystem.current().isMacOsX()) {
+            getCommand().addAll("bash", "-c", "npm install");
+        } else {
+            getCommand().addAll("npm", "install");
+        }
     }
 }

src/main/java/org/moddedmc/wiki/toolkit/task/RunLocalWikiInstanceTask.java

@@ -18,7 +18,9 @@ public abstract class RunLocalWikiInstanceTask extends ExecuteCommandTask {
     public abstract SetProperty<DocumentationRoot> getDocumentationRoots();
 
     public RunLocalWikiInstanceTask() {
-        if (OperatingSystem.current() != OperatingSystem.WINDOWS) {
+        if (OperatingSystem.current().isLinux()) {
+            getCommand().addAll("bash", "-ci", "npm run dev");
+        } else if (OperatingSystem.current().isMacOsX()) {
             getCommand().addAll("bash", "-c", "npm run dev");
         } else {
             getCommand().addAll("npm", "run", "dev");