Merge branch 'topic/fix-settings-tmpl' into 'master'

Fix JSON syntax in VS Code settings template

See merge request eng/ide/ada_language_server!1281

Author: eliericha

.vscode/extensions.json

@@ -2,6 +2,7 @@
    "recommendations": [
       "ms-python.black-formatter",
       "ms-python.flake8",
+      "ms-python.mypy-type-checker",
       "editorconfig.editorconfig",
       "dbaeumer.vscode-eslint",
       "esbenp.prettier-vscode",

.vscode/settings.json.tmpl

@@ -1,22 +1,24 @@
 {
+   "files.associations": {
+      // Treat the settings template file as JSON so it benefits from linting
+      // and formatting
+      "*.json.tmpl": "jsonc"
+   },
    "ada.projectFile": "gnat/lsp_server.gpr",
    "ada.scenarioVariables": {
       // Use static linking in local development to enable running the
       // ada_language_server executable after relocation into the VS Code
       // extension.
       "LIBRARY_TYPE": "static"
+   },
    "ada.onTypeFormatting.indentOnly": true,
    "[ada]": {
       "editor.autoIndent": "none",
       "editor.formatOnType": false,
       "editor.tabSize": 3
    },
    "python.analysis.extraPaths": ["testsuite"],
-   "python.linting.enabled": true,
-   "python.linting.mypyEnabled": true,
-   "python.linting.flake8Enabled": true,
    "flake8.args": ["--max-line-length", "88"],
-   "python.formatting.provider": "black",
    "[python]": {
       // Use the same line length as black and flake8
       "vim.textwidth": 88