fix: fix packaging of overlay manifests

(cherry picked from commit 2915f5cb30d9ed897ed026b69a475af1c6278b57)

waterfox/browser/components/WaterfoxGlue.jsm

@@ -50,17 +50,17 @@ const WaterfoxGlue = {
     let privateWindow = false;
     switch (manifest) {
       case "startup":
-        uri = "resource://waterfox/overlays/chrome.manifest";
+        uri = "resource://waterfox/overlays/chrome.overlay";
         break;
       case "private":
-        uri = "resource://waterfox/overlays/chrome.manifest";
+        uri = "resource://waterfox/overlays/chrome.overlay";
         privateWindow = true;
         break;
       case "preferences-general":
-        uri = "resource://waterfox/overlays/preferences-general.manifest";
+        uri = "resource://waterfox/overlays/preferences-general.overlay";
         break;
       case "preferences-privacy":
-        uri = "resource://waterfox/overlays/preferences-privacy.manifest";
+        uri = "resource://waterfox/overlays/preferences-privacy.overlay";
         break;
     }
     let chromeManifest = new ChromeManifest(async () => {

waterfox/browser/components/jar.mn

@@ -1,3 +1,3 @@
 browser.jar:
 %   resource waterfox %waterfox/ contentaccessible=yes
-    waterfox/overlays/chrome.manifest                      (chrome.manifest)
+    waterfox/overlays/chrome.overlay                      (chrome.overlay)

waterfox/browser/components/preferences/jar.mn

@@ -6,5 +6,5 @@ browser.jar:
      content/browser/overlays/privacy.js                           (content/privacy.js)
 
 %   resource waterfox %waterfox/ contentaccessible=yes
-    waterfox/overlays/preferences-general.manifest                 (preferences-general.manifest)
-    waterfox/overlays/preferences-privacy.manifest                 (preferences-privacy.manifest)
+    waterfox/overlays/preferences-general.overlay                  (preferences-general.overlay)
+    waterfox/overlays/preferences-privacy.overlay                  (preferences-privacy.overlay)