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_25.txt

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