Build plugin with grafana toolkit (#1539)

* Use grafana toolkit template for building plugin

* Fix linter and type errors

* Update styles building

* Fix sass deprecation warning

* Remove empty js files produced by webpack building sass

* Fix signing script

* Replace classnames with cx

* Fix data source config page

* Use custom webpack config instead of overriding original one

* Use gpx_ prefix for plugin executable

* Remove unused configs

* Roll back react hooks dependencies usage

* Move plugin-specific ts config to root config file

* Temporary do not use rst2html for function description tooltip

* Remove unused code

* remove unused dependencies

* update react table dependency

* Migrate tests to typescript

* remove unused dependencies

* Remove old webpack configs

* Add sign target to makefile

* Add magefile

* Update CI test job

* Update go packages

* Update build instructions

* Downgrade go version to 1.18

* Fix go version in ci

* Fix metric picker

* Add comment to webpack config

* remove angular mocks

* update bra config

* Rename datasource-zabbix to datasource (fix mage build)

* Add instructions for building backend with mage

* Fix webpack targets

* Fix ci backend tests

* Add initial e2e tests

* Fix e2e ci tests

* Update docker compose for cypress tests

* build grafana docker image

* Fix docker stop task

* CI: add Grafana compatibility check

src/panel-triggers/types.ts

@@ -1,4 +1,3 @@
-import { DataSourceRef } from '@grafana/data';
 import { CURRENT_SCHEMA_VERSION } from './migrations';
 
 export interface ProblemsPanelOptions {
@@ -26,7 +25,7 @@ export interface ProblemsPanelOptions {
   showEvents?: Number[];
   limit?: number;
   // View options
-  fontSize?: string;
+  fontSize: string;
   pageSize?: number;
   problemTimeline?: boolean;
   highlightBackground?: boolean;
@@ -36,9 +35,9 @@ export interface ProblemsPanelOptions {
   lastChangeFormat?: string;
   resizedColumns?: RTResized;
   // Triggers severity and colors
-  triggerSeverity?: TriggerSeverity[];
-  okEventColor?: TriggerColor;
-  ackEventColor?: TriggerColor;
+  triggerSeverity: TriggerSeverity[];
+  okEventColor: TriggerColor;
+  ackEventColor: TriggerColor;
   markAckEvents?: boolean;
 }
 
@@ -70,7 +69,7 @@ export const defaultPanelOptions: Partial<ProblemsPanelOptions> = {
   descriptionAtNewLine: false,
   // Options
   sortProblems: 'lastchange',
-  limit: null,
+  limit: undefined,
   // View options
   layout: 'table',
   fontSize: '100%',