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_30.txt

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