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_35.txt

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