Update JS dependencies and misc tweaks

- Update all JS dependencies minus webpack
- Adapt CodeMirrors styling to new CSS parent introduced by EasyMDE
- Set eslint parser to latest and add new eslint 7.14 rule
- Speed up npm install by disabling audit and fund checks
- Move fomantic-ui to optional dependencies to further speed up npm
- Enable syntax highlighting on GH for .eslintrc and .stylelintrc
- Makefile cleanups

.eslintrc

@@ -9,7 +9,7 @@ ignorePatterns:
 
 parserOptions:
   sourceType: module
-  ecmaVersion: 2020
+  ecmaVersion: 2021
 
 plugins:
   - eslint-plugin-unicorn
@@ -235,6 +235,7 @@ rules:
   no-new-symbol: [2]
   no-new-wrappers: [2]
   no-new: [0]
+  no-nonoctal-decimal-escape: [2]
   no-obj-calls: [2]
   no-octal-escape: [2]
   no-octal: [2]

.gitattributes

@@ -2,3 +2,5 @@
 /vendor/** -text -eol linguist-vendored
 /public/vendor/** -text -eol linguist-vendored
 /templates/**/*.tmpl linguist-language=Handlebars
+/.eslintrc linguist-language=YAML
+/.stylelintrc linguist-language=YAML

.npmrc

@@ -1,2 +1,3 @@
+fund=false
 package-lock=true
 save-exact=true

Makefile

@@ -255,7 +255,7 @@ swagger-check: generate-swagger
 		echo "Please run 'make generate-swagger' and commit the result:"; \
 		echo "$${diff}"; \
 		exit 1; \
-	fi;
+	fi
 
 .PHONY: swagger-validate
 swagger-validate:
@@ -296,7 +296,7 @@ fmt-check:
 		echo "Please run 'make fmt' and commit the result:"; \
 		echo "$${diff}"; \
 		exit 1; \
-	fi;
+	fi
 
 .PHONY: checks
 checks: checks-frontend checks-backend
@@ -348,7 +348,7 @@ test-check:
 		echo "You should change the tests to create these files in a temporary directory."; \
 		echo "Do not simply add these files to .gitignore"; \
 		exit 1; \
-	fi;
+	fi
 
 .PHONY: test\#%
 test\#%:
@@ -373,7 +373,7 @@ test-vendor: vendor
 		echo "Please run 'make vendor' and commit the result:"; \
 		echo "$${diff}"; \
 		exit 1; \
-	fi;
+	fi
 
 generate-ini-sqlite:
 	sed -e 's|{{REPO_TEST_DIR}}|${REPO_TEST_DIR}|g' \
@@ -623,7 +623,7 @@ docs:
 	cd docs; make trans-copy clean build-offline;
 
 node_modules: package-lock.json
-	npm install --no-save
+	npm install --no-save --no-audit -no-optional
 	@touch node_modules
 
 .PHONY: npm-update
@@ -637,6 +637,9 @@ npm-update: node-check | node_modules
 fomantic: $(FOMANTIC_DEST)
 
 $(FOMANTIC_DEST): $(FOMANTIC_CONFIGS) | node_modules
+	@if [ ! -d node_modules/fomantic-ui ]; then \
+		npm install --no-save --no-audit; \
+	fi
 	rm -rf $(FOMANTIC_DEST_DIR)
 	cp -f web_src/fomantic/theme.config.less node_modules/fomantic-ui/src/theme.config
 	cp -rf web_src/fomantic/_site/* node_modules/fomantic-ui/src/_site/
@@ -664,7 +667,7 @@ svg-check: svg
 		echo "Please run 'make svg' and 'git add $(SVG_DEST_DIR)' and commit the result:"; \
 		echo "$${diff}"; \
 		exit 1; \
-	fi;
+	fi
 
 .PHONY: update-translations
 update-translations: