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/vbars/frame_34.txt

@@ -0,0 +1,17 @@
+                                      
+               ▎▊▌▉▉▉▉▌▏▊▎            
+           ▎▉▉▉▋▍▌▏█▏▉▉▌▉▉▌▊▌▎        
+         ▎▋▋▊▏▉█▋▏▉▎   ▎▍▍▍▊█▉▉▊      
+        ▊▋▎▏▉▎▋▊▎          ▉▏▊▉▍▍     
+       ▋▋▏▍▊▋▏ ▏█ ▊          ▍▍▉▍▍    
+      ▊▋▍▏▎▋ ▍▍█▏▍▉▍          ▍▊▍▏▍   
+      ▏▉▍▏▎   █▍▎▉▏▎▍          ▏▌▏▎   
+      ▍▏▌█▋    ▏▉▎▏▋█▏         ▋ ▎▍   
+      ▊█▋▋█   ▋▍▋▋█▎▌▌▉▉▉▉▉▉▏▎▎█ ▏▍▎  
+      ▏▏▍▊▋▊▊▍█▋▋█▏▏▏▎▏▋▎▎▎▊▋▎▏▏▎▏▍   
+       ▋▎▍▊ ▏▍▏▉▍   █▉▉▎▎▎▎▍ ▊▋▊▍▏█   
+        ▋▊▍▌▌▍▎             ▋▌▋▏▋█    
+         ▍▉▎▏▉▍▌▊        ▎▉▌█▎▋▊▎     
+           ▊▍▋▏█▏▉▊▌▊▉▌▉▌▉▎▉▉▋█       
+             █▏▍▌▌▎▎▎▎▎▌▌▉▌▍          
+                   ▎▎▎