Refactor About dialog by removing contributor information and reducing height of the dialog. Update README.md to clarify the fork's source and upstream repository links.

README.md

@@ -1,6 +1,6 @@
 # Strawberry (macOS-focused fork)
 
-This repository is a **macOS-focused fork** of the upstream Strawberry Music Player project originally created and maintained by **Jonas Kvinge** (itself originally forked from Clementine).
+This repository is a **macOS-focused fork** of upstream Strawberry.
 
 The goal of this fork is to make Strawberry **build cleanly and repeatably on macOS**, with:
 
@@ -11,7 +11,13 @@ The goal of this fork is to make Strawberry **build cleanly and repeatably on ma
 
 ## Upstream vs this fork (macOS distribution)
 
-Upstream Strawberry is free/open-source, but upstream’s **macOS binaries** may be distributed via a **paid-access channel** depending on the release period and policy.
+Upstream Strawberry is where ongoing development happens:
+
+- Upstream: `https://github.com/strawberrymusicplayer/strawberry`
+
+This fork’s source (the code you are building here):
+
+- Fork: `https://gitea.dryark.com/dryark/strawberry`
 
 This fork is intended for people who want to:
 
@@ -101,9 +107,9 @@ Also install GStreamer plugins **base**, **good**, and optionally **bad**, **ugl
 
 ## :wrench: Build from Source
 
-**Get the code:**
+**Get the code (this fork):**
 
-    git clone --recursive https://github.com/strawberrymusicplayer/strawberry
+    git clone --recursive https://gitea.dryark.com/dryark/strawberry
 
 **Build and install:**