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_34.txt

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