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/dots/frame_31.txt

@@ -0,0 +1,17 @@
+                                      
+                ○◉◉●●●●○●             
+              ○●●◉●●○ ●○●●●           
+             ●·○◉◉●○○·◉ ·○●○          
+            ●·◉●○○●◉○●○○·○··○         
+            ○····●◉●○○● ○·◉○○         
+           ◉·○··○·● ○◉●●◉◉·● ·        
+           ◉·· ·○●·○◉○◉◉●·●·◉·        
+           ○○● ·· ·○ ·○  ··○◉·        
+           ·○●○·●○···◉●···○  ·        
+            ···◉◉··○○○○○·○·· ●        
+           ○●○◉●·● ◉●●●·◉·●·○         
+            ···○○○●     ○○● ·         
+             ◉·●○○ ●  ◉ ·●·◉·         
+              ◉·○·◉○··●· ●··          
+               ● ○·○●●◉◉◉●            
+                   ····