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/shapes/frame_16.txt

@@ -0,0 +1,17 @@
+                                      
+                ◆●□■□□□◇◆             
+               △○◇◇□◇◇○◇●○            
+              ◇△△■○△●○◇◇ ■○           
+             △△△ ●□◆○◇○◇◇□□◇          
+             ◇◇●◆△□■●◇◇□△◇◆○          
+            ◇◇◇□◇■ ◇○●  ◇ ◇△◇         
+            ○○◇ △◆▲◇◇◇◇△□■▲ ◇         
+            ◇△● ◇◆◇◇△◇◇◇■● ◆◇         
+            ○○◇◇◇□◇△○◇◇■□□  △         
+            □■◆◆▲●●○□◇△◆◇ ▲◆◇         
+            ◇◇◇□■■△□○◇●■●△◇◇◆         
+             ◇◇□ ◇◆  ◆△△▲  △          
+             ○◇□  ◇  △▲△◆▲◇           
+              ○◇◇■◆□◇△△□◆◇            
+               ■△△◆●△◆◆●□             
+