fix: default 8 modules to disabled to match EnabledModules.cs (#47144)

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## Summary of the Pull Request
Fixes a mismatch where 8 modules inherited the default
`is_enabled_by_default() = true` from `PowertoyModuleIface` while
`EnabledModules.cs` declared them `false`. On a clean install the Runner
would enable these modules on first launch, then Settings UI would flip
them back off once it persisted `settings.json` — a one-time visible
flicker and a DSC compliance gap.

Adds an explicit `is_enabled_by_default() const override { return false;
}` in the following module interfaces so both sides of the default
agree:

- `src/modules/launcher/Microsoft.Launcher/dllmain.cpp` (PowerToys Run)
- `src/modules/CropAndLock/CropAndLockModuleInterface/dllmain.cpp`
- `src/modules/AdvancedPaste/AdvancedPasteModuleInterface/dllmain.cpp`
- `src/modules/Hosts/HostsModuleInterface/dllmain.cpp`
- `src/modules/registrypreview/RegistryPreviewExt/dllmain.cpp`
-
`src/modules/EnvironmentVariables/EnvironmentVariablesModuleInterface/dllmain.cpp`
- `src/modules/Workspaces/WorkspacesModuleInterface/dllmain.cpp`
- `src/modules/powerdisplay/PowerDisplayModuleInterface/dllmain.cpp`

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- [ ] Closes: #xxx
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- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
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for new binaries
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installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
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pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
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repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx

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Co-authored-by: Yu Leng (from Dev Box) <yuleng@microsoft.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/modules/Workspaces/WorkspacesModuleInterface/dllmain.cpp

@@ -92,6 +92,12 @@ public:
         return powertoys_gpo::getConfiguredWorkspacesEnabledValue();
     }
 
+    // Returns whether the PowerToys should be enabled by default
+    virtual bool is_enabled_by_default() const override
+    {
+        return false;
+    }
+
     // Return JSON with the configuration options.
     // These are the settings shown on the settings page along with their current values.
     virtual bool get_config(_Out_ PWSTR buffer, _Out_ int* buffer_size) override