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/hash/frame_31.txt

@@ -0,0 +1,17 @@
+                                      
+                -.A*#*#*#             
+              -#**##-█#*█*#           
+             #.*AA#*--.█.-**          
+            #.A#--**-#**.*..*         
+            -....#-**-#█*.A--         
+           *.--.-.██***#.A.#█.        
+           A.. .-*.*.*A**.*.A.        
+           **# ..█.* .-██..*..        
+           .*#-.█-...A#...-  .        
+           █...AA..---*-.*.. *        
+           -*-A#.# A***-A.█.-         
+            ...***#     -** .         
+             *.**- #  . .*-A-         
+              A.*.A-.-#.█#.-          
+               ██*.-#*A.**            
+                   ----