misc fixes

- add notedeck version number to support view & email body
- add milestone name below Damus logo in side panel
- remove search button in side panel
- remove fps counter & text mode in top bar
- remove 'add relay' button in settings view

Closes: #505
Signed-off-by: kernelkind <kernelkind@gmail.com>

src/ui/support.rs

@@ -75,6 +75,7 @@ impl<'a> SupportView<'a> {
                         .color(egui::Color32::RED),
                 );
             }
+            ui.label(format!("Notedeck {}", env!("CARGO_PKG_VERSION")));
             ui.label(format!("Commit hash: {}", env!("GIT_COMMIT_HASH")));
         });
     }