[libcalamaresui] Add donateUrl to the branding settings

SEE #1384

src/branding/default/branding.desc

@@ -103,6 +103,7 @@ strings:
     supportUrl:          https://github.com/calamares/calamares/issues
     knownIssuesUrl:      https://calamares.io/about/
     releaseNotesUrl:     https://calamares.io/about/
+    donateUrl:           https://kde.org/community/donations/index.php
 
 # These images are loaded from the branding module directory.
 #

src/libcalamaresui/Branding.cpp

@@ -67,7 +67,8 @@ const QStringList Branding::s_stringEntryStrings =
     "productUrl",
     "supportUrl",
     "knownIssuesUrl",
-    "releaseNotesUrl"
+    "releaseNotesUrl",
+    "donateUrl"
 };
 
 

src/libcalamaresui/Branding.h

@@ -61,7 +61,8 @@ public:
         ProductUrl,
         SupportUrl,
         KnownIssuesUrl,
-        ReleaseNotesUrl
+        ReleaseNotesUrl,
+        DonateUrl
     };
     Q_ENUM( StringEntry )