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_33.txt

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