docs: Update README to v4.7.53 with Desktop Edition and roadmap updates

- Update version to v4.7.53
- Add Desktop Edition documentation (Windows, macOS, Linux)
- Update roadmap with all versions and dates
- Add mobile apps information (Q1 2026)
- Expand security and development sections
- Update URLs to securebit.chat domain

src/styles/components.css

@@ -476,6 +476,21 @@ button i {
     scroll-margin-bottom: 20px;
 }
 
+.message {
+    word-wrap: break-word;
+    overflow-wrap: break-word;
+    white-space: normal;
+    max-width: 100%;
+}
+
+.message span {
+    word-wrap: break-word;
+    overflow-wrap: break-word;
+    white-space: normal;
+    display: inline-block;
+    max-width: 100%;
+}
+
 .chat-messages-area {
     scroll-behavior: smooth;
     scroll-padding-bottom: 20px;