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_18.txt

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