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_5.txt

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