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_12.txt

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