feat: add viewcontext and appcontext placeholders

Author: prplwtf

.zed/settings.json

@@ -4,5 +4,6 @@
       "tab_size": 2,
       "hard_tabs": false
     }
-  }
+  },
+  "format_on_save": "off"
 }

scripts/commands/extensions/install.sh

@@ -332,6 +332,8 @@ InstallExtension() {
               -e "s~!{target~{__BP_ESCAPED__target~g" \
               -e "s~!{root~{__BP_ESCAPED__root~g" \
               -e "s~!{webroot~{__BP_ESCAPED__webroot~g" \
+              -e "s~!{viewcontext~{__BP_ESCAPED__viewcontext~g" \
+              -e "s~!{appcontext~{__BP_ESCAPED__appcontext~g" \
               -e "s~!{engine~{__BP_ESCAPED__engine~g" \
               -e "s~!{fs~{__BP_ESCAPED__fs~g" \
               -e "s~!{is_~{__BP_ESCAPED__is_~g" \
@@ -346,6 +348,8 @@ InstallExtension() {
               -e "s~{target}~$VERSION~g" \
               -e "s~{root}~$FOLDER~g" \
               -e "s~{webroot}~/~g" \
+              -e "s~{viewcontext}~blueprint.extensions.$identifier~g" \
+              -e "s~{appcontext}~Pterodactyl\\BlueprintFramework\\Extensions\\$identifier~g" \
               -e "s~{engine}~$BLUEPRINT_ENGINE~g" \
               -e "s~{fs}~blueprint:$identifier~g" \
               \
@@ -371,6 +375,8 @@ InstallExtension() {
               -e "s~{__BP_ESCAPED__target~{target~g" \
               -e "s~{__BP_ESCAPED__root~{root~g" \
               -e "s~{__BP_ESCAPED__webroot~{webroot~g" \
+              -e "s~{__BP_ESCAPED__viewcontext~{viewcontext~g" \
+              -e "s~{__BP_ESCAPED__appcontext~{appcontext~g" \
               -e "s~{__BP_ESCAPED__engine~{engine~g" \
               -e "s~{__BP_ESCAPED__fs~{fs~g" \
               -e "s~{__BP_ESCAPED__is_~{is~g" \