fix(lsp/java): empty imports allows classes from same package to be imported with completion items

.idea/deploymentTargetDropDown.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetDropDown">
+    <runningDeviceTargetSelectedWithDropDown>
+      <Target>
+        <type value="RUNNING_DEVICE_TARGET" />
+        <deviceKey>
+          <Key>
+            <type value="SERIAL_NUMBER" />
+            <value value="b36e6c44" />
+          </Key>
+        </deviceKey>
+      </Target>
+    </runningDeviceTargetSelectedWithDropDown>
+    <timeTargetWasSelectedWithDropDown value="2023-04-09T13:43:12.625854159Z" />
+  </component>
+</project>

lsp/java/src/main/java/com/itsaky/androidide/lsp/java/utils/EditHelper.java

@@ -62,8 +62,8 @@ public class EditHelper {
   }
 
   public static boolean containsImport(@NonNull Path file, Set<String> imports, String className) {
-    if (imports == null || imports.isEmpty()) {
-      return false;
+    if (imports == null) {
+      imports = Collections.emptySet();
     }
 
     final String pkgName = Extractors.packageName(className);