Docs: Update the Podman Desktop docs for macOS

In order to access our custom seccomp policy, we require it to be
mounted on the podman machine.

Co-Author: Alex Pyrgiotis <alex.p@freedom.press>

docs/podman-desktop.md

@@ -12,7 +12,20 @@ You will be required to open a terminal and follow these steps:
 
 ## On macOS
 
-To set the container runtime to podman, use this command:
+You will need to configure podman to access the shared Dangerzone resources:
+
+```bash
+podman machine stop
+podman machine rm
+cat > ~/.config/containers/containers.conf <<EOF
+[machine]
+volumes = ["/Users:/Users", "/private:/private", "/var/folders:/var/folders", "/Applications/Dangerzone.app:/Applications/Dangerzone.app"]
+EOF
+podman machine init
+podman machine set --rootful=false  
+podman machine start
+```
+Then, set the container runtime to podman using this command:
 
 ```bash
 /Applications/Dangerzone.app/Contents/MacOS/dangerzone-cli --set-container-runtime podman

install/windows/build-wxs.py

@@ -193,7 +193,7 @@ def main():
         Path="C:\\Program Files (x86)\\Dangerzone",
     )
     ET.SubElement(directory_search_el, "FileSearch", Name="dangerzone.exe")
-    registry_search_el = ET.SubElement(package_el, "Property", Id="DANGERZONE080FOUND")
+    registry_search_el = ET.SubElement(package_el, "Property", Id="DANGERZONE08FOUND")
     ET.SubElement(
         registry_search_el,
         "RegistrySearch",
@@ -202,11 +202,19 @@ def main():
         Name="DisplayName",
         Type="raw",
     )
+    ET.SubElement(
+        registry_search_el,
+        "RegistrySearch",
+        Root="HKLM",
+        Key="SOFTWARE\\WOW6432Node\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\{8AAC0808-3556-4164-9D15-6EC1FB673AB2}",
+        Name="DisplayName",
+        Type="raw",
+    )
     ET.SubElement(
         package_el,
         "Launch",
-        Condition="NOT OLDDANGERZONEFOUND AND NOT DANGERZONE080FOUND",
+        Condition="NOT OLDDANGERZONEFOUND AND NOT DANGERZONE08FOUND",
-        Message="A previous version of [ProductName] is already installed. Please uninstall it from Programs and Features before proceeding with the installation.",
+        Message='A previous version of [ProductName] is already installed. Please uninstall it from "Apps & Features" before proceeding with the installation.',
     )
 
     # Add the ProgramMenuFolder StandardDirectory