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/codex/frame_17.txt

@@ -0,0 +1,17 @@
+                                      
+                odcccddxoe            
+             edccxxxcdcxoceo          
+            oceoeddecocxxxece         
+           oxoeoxcee cxdexxxde        
+           xoe x    xcoedeoo  o       
+          edcooe   odox oodoxoo       
+          c dox   oooxe ccxxodx       
+          ocdx     ooxxoxoxxddc       
+          oocoeddcxeexeedexxx x       
+           xcedeexoceoxxe eccce       
+          eeeoccccccceexcooe ec       
+           exxec       eoxxe d        
+            eee cee   ocooeeo         
+             o xccdeceedcdxc          
+              ecdoeocxcecc            
+                   e