Fix build break where Microsoft.Terminal.Control.dll is empty (#9537)

TIL that the `<None Include="Foo.def" />` line in our projects is
actually totally meaningless. The important line is the one that's in
`cppwinrt.build.pre.props`, where we declare 

```xml
<ModuleDefinitionFile Condition="Exists('$(ProjectName).def')">$(ProjectName).def</ModuleDefinitionFile>
```

So if you change a project's name, and not the `.def` file, then the
linker will just _not use the `.def` file at all_.

More importantly, this seemingly doesn't matter in debug builds. In a
Debug build, the linker will happily still include `WINRT_CanUnloadNow`
and `WINRT_GetActivationFactory` in the exports from the dll, even
without the `.def`. But in a Release build, the linker is much more
agressive about pruning symbols that aren't referenced, and without
those two, NONE of the symbols are eventually referenced.

This PR fixes `Microsoft.Terminal.Control` by renaming the `.def`, and
makes it marginally harder for someone to make the same mistake in the
future.

## References
* Regressed in #9472 

## PR Checklist
* [x] Closes #9529
* [x] I work here

src/cascadia/Remoting/dll/Microsoft.Terminal.Remoting.vcxproj

@@ -33,7 +33,7 @@
   <!-- ========================= Misc Files ======================== -->
   <ItemGroup>
     <None Include="packages.config" />
-    <None Include="Microsoft.Terminal.Remoting.def" />
+    <None Include="$(ProjectName).def" />
   </ItemGroup>
   <!-- ========================= Project References ======================== -->
   <ItemGroup>

src/cascadia/ShellExtension/WindowsTerminalShellExt.vcxproj

@@ -31,7 +31,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />
-    <None Include="WindowsTerminalShellExt.def" />
+    <None Include="$(ProjectName).def" />
   </ItemGroup>
   <!-- ========================= Project References ======================== -->
   <ItemGroup>

src/cascadia/TerminalApp/dll/TerminalApp.vcxproj

@@ -47,7 +47,7 @@
   <!-- ========================= Misc Files ======================== -->
   <ItemGroup>
     <None Include="packages.config" />
-    <None Include="TerminalApp.def" />
+    <None Include="$(ProjectName).def" />
   </ItemGroup>
   <!-- ========================= Project References ======================== -->
   <ItemGroup>

src/cascadia/TerminalControl/dll/TerminalControl.vcxproj

@@ -47,7 +47,7 @@
   <!-- ========================= Misc Files ======================== -->
   <ItemGroup>
     <None Include="packages.config" />
-    <None Include="TerminalControl.def" />
+    <None Include="$(ProjectName).def" />
   </ItemGroup>
   <!-- ========================= Project References ======================== -->
   <ItemGroup>

src/cascadia/TerminalSettingsEditor/Microsoft.Terminal.Settings.Editor.vcxproj

@@ -245,7 +245,7 @@
       <SubType>Designer</SubType>
     </PRIResource>
     <OCResourceDirectory Include="Resources" />
-    <None Include="TerminalSettingsEditor.def" />
+    <None Include="$(ProjectName).def" />
     <None Include="packages.config" />
     <None Include="PropertySheet.props" />
   </ItemGroup>

src/cascadia/TerminalSettingsEditor/Microsoft.Terminal.Settings.Editor.vcxproj.filters

@@ -22,7 +22,7 @@
     </Midl>
   </ItemGroup>
   <ItemGroup>
-    <None Include="TerminalSettingsEditor.def" />
+    <None Include="Microsoft.Terminal.Settings.Editor.def" />
     <None Include="packages.config" />
     <None Include="PropertySheet.props" />
   </ItemGroup>
@@ -41,4 +41,4 @@
       <UniqueIdentifier>{00f725c8-41b4-40a8-995e-8ee2e49a4a4c}</UniqueIdentifier>
     </Filter>
   </ItemGroup>
-</Project>
+</Project>

src/cascadia/TerminalSettingsModel/dll/Microsoft.Terminal.Settings.Model.vcxproj

@@ -41,7 +41,7 @@
   <!-- ========================= Misc Files ======================== -->
   <ItemGroup>
     <None Include="packages.config" />
-    <None Include="Microsoft.Terminal.Settings.Model.def" />
+    <None Include="$(ProjectName).def" />
   </ItemGroup>
   <!-- ========================= Project References ======================== -->
   <ItemGroup>