Change animation frames (#3627)

## Description
- Changes animation frames to be smaller
- Cleans up file names and popup logic

## tests
- Passes local CI

codex-rs/tui/frames/hbars/frame_8.txt

@@ -0,0 +1,17 @@
+                                      
+             ▂▂▇▂▄▇▇▄▇▆▂              
+           ▆█▇▅▁▁▁▇▄▄ ▁ █▇            
+         ▂▁▄▆▁▅▅▇ ▆█▁▅▁▇▃▇▃▆          
+        ▂▇▃▇▅▁▆▇▁     █ ▄▃▁▁▃         
+        █ ▅▁▅▆▃▁▅▃      ▅█▃▁▁▆        
+       ▁█▆▁▃▃▃▂▃▁▂▇      ▃▇▁▁▁        
+       ▁▇▁▁▁ █▂▄▃▁▂▁     ▁▃▁▅▁▆       
+       ▃▆▁▁▅  ▁▇▃▅▁▆▇▅    ▅▂▅▁▁       
+       ▃ ▃▁▁▂▃  ▅▇▄▁▁▅▇▆▇▆▆▃▁▁▁       
+          ▃▇▅▄▂▁█▆▁▆▁▁▄▁▄▂▂▁▁▄█       
+        ▅▅▃▃▁▃▁▁▁▅█▃▇▃▇█▃▇█▅▃▁        
+        █▆█▁▃▁▂▂        ▅▆▅▅▅█        
+         █▃▂▇▃▃▃▂    ▂▅▃▂▁▇▅▇         
+           ▅▅█▁▆▇ ▄▄▇▇▄▅▄▆▁▂          
+             ▁▁▂▇▇▃▁▂▆▇▅▄▂            
+                  ▂▂