fix: mark all product modules as application:True so they show in Apps

Only community_membership and community_school had application: True;
the other 6 product modules (community_benefits, community_classifieds,
community_interac, community_portal, community_theme_base,
event_qr_ticketing) had application: False despite being fully installed
and functional. Odoo's Apps screen filters to application=True by
default, so they were invisible there even though Technical > Installed
Modules showed them correctly - looked like they weren't installed.

Per the plan's own resellability rule ("each module is independently
installable and independently sellable"), every community_* product
module should be a discoverable Apps-grid entry. tncsc_deployment stays
application: False - it's the hidden client-config layer, not something
anyone browses to install on its own.

Verified on tncsc_site: -u upgrade picked up the flag for all 6, and the
site still serves every page (/, /about, /membership, /tamil-school,
/contact, /event) after the upgrade.

addons/community_benefits/__manifest__.py

@@ -35,6 +35,6 @@ entitled per membership tier:
     ],
     'demo': [],
     'images': ['static/description/banner.png'],
-    'application': False,
+    'application': True,
     'installable': True,
 }

addons/community_classifieds/__manifest__.py

@@ -36,6 +36,6 @@ Soft-detects Community OS Membership; runs standalone without it.
     ],
     'demo': [],
     'images': ['static/description/banner.png'],
-    'application': False,
+    'application': True,
     'installable': True,
 }

addons/community_interac/__manifest__.py

@@ -38,6 +38,6 @@ Sellable to any Canadian organization accepting Interac e-Transfer.
     ],
     'demo': [],
     'images': ['static/description/banner.png'],
-    'application': False,
+    'application': True,
     'installable': True,
 }

addons/community_portal/__manifest__.py

@@ -31,6 +31,6 @@ a missing module:
     ],
     'demo': [],
     'images': ['static/description/banner.png'],
-    'application': False,
+    'application': True,
     'installable': True,
 }

addons/community_theme_base/__manifest__.py

@@ -31,6 +31,6 @@ layout that reads these tokens.
     ],
     'demo': [],
     'images': ['static/description/banner.png'],
-    'application': False,
+    'application': True,
     'installable': True,
 }

addons/event_qr_ticketing/__manifest__.py

@@ -40,7 +40,7 @@ OS product module required.
         ],
     },
     'images': ['static/description/banner.png'],
-    'application': False,
+    'application': True,
     'installable': True,
     'external_dependencies': {
         'python': ['qrcode'],