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_17.txt

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