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_22.txt

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