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_9.txt

@@ -0,0 +1,17 @@
+                                      
+              odecoccdo               
+            oceoxxccd eoee            
+           o oxxoceedo eexo           
+          c xxodde eeoxeexco          
+         occdeccxco coccdcxx          
+         x xxxcexedee xcxcxxx         
+         e xcexccxeeocooo exx         
+        x  xoeoexxxeodeex  xx         
+           coxc oxcxxxxcxxoxxe        
+         xexxxeoxexexxxxeexxx         
+         c eeoeexocccccxxcoex         
+          exxxeoe     oo eoxe         
+           ecexee    odedxoc          
+            eoceexcocdddcxe           
+             coe ceexdcoc             
+