chore: fix issue templates

Author: tpoisot

.github/ISSUE_TEMPLATE/bug_report.md

@@ -13,7 +13,7 @@ A clear and concise description of what the bug is.
 A [minimal reproducible example](https://stackoverflow.com/help/minimal-reproducible-example) that is enough to show what the problem is
 
 ~~~ julia
-using SimpleSDMLayers
+using SpatialBoundaries
 
 # Add your code here
 ~~~

.github/ISSUE_TEMPLATE/feature_request.md

@@ -15,7 +15,7 @@ A clear and concise description of what you want to happen.
 Ideally, this can take the form of code you would like to write:
 
 ~~~ julia
-using SimpleSDMLayers
+using SpatialBoundaries
 
 # Write your dream code here
 ~~~