Change transparent .svg to opaque .png (#11084)

Co-authored-by: publish-docs.sh <maintainers@solana.com>

docs/.gitignore

@@ -9,6 +9,7 @@
 .cache-loader
 .vercel
 /static/img/*.svg
+/static/img/*.png
 vercel.json
 
 # Misc

docs/convert-ascii-to-svg.sh

@@ -11,11 +11,11 @@ output_dir=static/img
 mkdir -p "$output_dir"
 
 while read -r bob_file; do
-  svg_file=$(basename "${bob_file%.*}".svg)
-  svgbob "$bob_file" --output "$output_dir/$svg_file"
+  out_file=$(basename "${bob_file%.*}".svg)
+  svgbob "$bob_file" --output "$output_dir/$out_file"
 done < <(find art/*.bob)
 
 while read -r msc_file; do
-  svg_file=$(basename "${msc_file%.*}".svg)
-  mscgen -T svg -o "$output_dir/$svg_file" -i "$msc_file"
+  out_file=$(basename "${msc_file%.*}".png)
+  mscgen -T png -o "$output_dir/$out_file" -i "$msc_file"
 done < <(find art/*.msc)

docs/src/cluster/stake-delegation-and-rewards.md

@@ -126,7 +126,7 @@ Lamports build up over time in a Stake account and any excess over activated sta
 
 ## Example Callflow
 
-![Passive Staking Callflow](/img/passive-staking-callflow.svg)
+![Passive Staking Callflow](/img/passive-staking-callflow.png)
 
 ## Staking Rewards