[FIX] web: conflict in qunit type definition

In the QUnit type definitions, there is a QUnit namespace and a QUnit
interface. When using a jetbrains IDE, it is confused between the two
and thinks the global QUnit is the namespace.
This means that it can't resolve QUnit.test, QUnit.module, etc

This fixes this issue by disambiguating between the two.

Part-of: odoo/odoo#107711

addons/web/tooling/types/qunit.d.ts

@@ -457,7 +457,7 @@ interface Assert {
   ) => void;
   type ModuleOnly = { only: moduleFunc1 & moduleFunc2 };
   
-  declare namespace QUnit {
+  declare namespace QUnitNamespace {
     interface BeginDetails {
       totalTests: number;
     }
@@ -520,7 +520,7 @@ interface Assert {
      *
      * @callback callback Callback to execute.
      */
-    begin(callback: (details: QUnit.BeginDetails) => void | Promise<void>): void;
+    begin(callback: (details: QUnitNamespace.BeginDetails) => void | Promise<void>): void;
   
     /**
      * Configuration for QUnit
@@ -535,7 +535,7 @@ interface Assert {
      *
      * @param callback Callback to execute
      */
-    done(callback: (details: QUnit.DoneDetails) => void | Promise<void>): void;
+    done(callback: (details: QUnitNamespace.DoneDetails) => void | Promise<void>): void;
   
     /**
      * Advanced and extensible data dumping for JavaScript.
@@ -579,7 +579,7 @@ interface Assert {
      *
      * @param callback Callback to execute
      */
-    log(callback: (details: QUnit.LogDetails) => void): void;
+    log(callback: (details: QUnitNamespace.LogDetails) => void): void;
   
     /**
      * Group related tests under a single label.
@@ -627,7 +627,7 @@ interface Assert {
      * @param callback Callback to execute
      */
     moduleDone(
-      callback: (details: QUnit.ModuleDoneDetails) => void | Promise<void>
+      callback: (details: QUnitNamespace.ModuleDoneDetails) => void | Promise<void>
     ): void;
   
     /**
@@ -636,7 +636,7 @@ interface Assert {
      * @param callback Callback to execute
      */
     moduleStart(
-      callback: (details: QUnit.ModuleStartDetails) => void | Promise<void>
+      callback: (details: QUnitNamespace.ModuleStartDetails) => void | Promise<void>
     ): void;
   
     /**
@@ -756,7 +756,7 @@ interface Assert {
      * @param callback Callback to execute
      */
     testStart(
-      callback: (details: QUnit.TestStartDetails) => void | Promise<void>
+      callback: (details: QUnitNamespace.TestStartDetails) => void | Promise<void>
     ): void;
   
     /**