Change default folders for user content (#4333)

old vs. new defaults:
%USERHOME%/.o3de/Projects-> %USERHOME%/O3DE/Projects
%USERHOME%/.o3de/Gems-> %USERHOME%/O3DE/Gems
%USERHOME%/.o3de/Templates-> %USERHOME%/O3DE/Templates


Signed-off-by: AMZN-alexpete <26804013+AMZN-alexpete@users.noreply.github.com>

scripts/o3de/o3de/manifest.py

@@ -41,6 +41,11 @@ def get_o3de_folder() -> pathlib.Path:
     o3de_folder.mkdir(parents=True, exist_ok=True)
     return o3de_folder
 
+def get_o3de_user_folder() -> pathlib.Path:
+    o3de_user_folder = get_home_folder() / 'O3DE'
+    o3de_user_folder.mkdir(parents=True, exist_ok=True)
+    return o3de_user_folder
+
 
 def get_o3de_registry_folder() -> pathlib.Path:
     registry_folder = get_o3de_folder() / 'Registry'
@@ -67,19 +72,19 @@ def get_o3de_engines_folder() -> pathlib.Path:
 
 
 def get_o3de_projects_folder() -> pathlib.Path:
-    projects_folder = get_o3de_folder() / 'Projects'
+    projects_folder = get_o3de_user_folder() / 'Projects'
     projects_folder.mkdir(parents=True, exist_ok=True)
     return projects_folder
 
 
 def get_o3de_gems_folder() -> pathlib.Path:
-    gems_folder = get_o3de_folder() / 'Gems'
+    gems_folder = get_o3de_user_folder() / 'Gems'
     gems_folder.mkdir(parents=True, exist_ok=True)
     return gems_folder
 
 
 def get_o3de_templates_folder() -> pathlib.Path:
-    templates_folder = get_o3de_folder() / 'Templates'
+    templates_folder = get_o3de_user_folder() / 'Templates'
     templates_folder.mkdir(parents=True, exist_ok=True)
     return templates_folder