fix(images): correct mifos logo reference from png to jpg (#2959)

Correct incorrect references to `mifos_lg-logo.png`.

The PNG asset does not exist; the correct file is `mifos_lg-logo.jpg`.
Although the UI rendered correctly due to fallback logic, the incorrect
reference was misleading and could cause issues in future refactors.

src/environments/environment.prod.ts

@@ -52,7 +52,7 @@ export const environment = {
 
   displayBackEndInfo: loadedEnv['displayBackEndInfo'] || 'true',
   displayTenantSelector: loadedEnv['displayTenantSelector'] || 'true',
-  tenantLogoUrl: loadedEnv['tenantLogoUrl'] || 'assets/images/mifos_lg-logo.png',
+  tenantLogoUrl: loadedEnv['tenantLogoUrl'] || 'assets/images/mifos_lg-logo.jpg',
   documentationBaseUrl: loadedEnv['documentationBaseUrl'] || 'https://mifosforge.jira.com/wiki',
   // Time in seconds, default 60 seconds
   waitTimeForNotifications: loadedEnv['waitTimeForNotifications'] || 60,

src/environments/environment.ts

@@ -56,7 +56,7 @@ export const environment = {
 
   displayBackEndInfo: loadedEnv.displayBackEndInfo || 'true',
   displayTenantSelector: loadedEnv.displayTenantSelector || 'true',
-  tenantLogoUrl: loadedEnv.tenantLogoUrl || 'assets/images/mifos_lg-logo.png',
+  tenantLogoUrl: loadedEnv.tenantLogoUrl || 'assets/images/mifos_lg-logo.jpg',
   documentationBaseUrl: loadedEnv.documentationBaseUrl || 'https://mifosforge.jira.com/wiki',
   // Time in seconds, default 60 seconds
   waitTimeForNotifications: loadedEnv.waitTimeForNotifications || 60,

src/theme/_dark_content.scss

@@ -271,7 +271,7 @@ body.dark-theme {
 
   // Home page logo styling for dark mode
   mifosx-home {
-    [src*='mifos_lg-logo.png'],
+    [src*='mifos_lg-logo.jpg'],
     [src$='_home.png'] {
       content: url('../assets/images/white-mifos.png');
     }