Prevent boards product from being included automatically (#23539)

* Prevent boards product from being included automatically

* Fix config diff test

* Update prepackaged plugin version

Co-authored-by: Scott Bishel <scott.bishel@mattermost.com>

* Readd boards/dist to the gitignore

* Does not enable the focalboard plugin by default

* Update plugin version to v7.10.3

---------

Co-authored-by: Scott Bishel <scott.bishel@mattermost.com>

webapp/channels/webpack.config.js

@@ -279,15 +279,10 @@ if (DEV) {
     config.plugins.push({
         apply: (compiler) => {
             compiler.hooks.afterEmit.tap('AfterEmitPlugin', () => {
-                const boardsDist = path.resolve(__dirname, '../boards/dist');
-                const boardsSymlink = './dist/products/boards';
                 const playbooksDist = path.resolve(__dirname, '../playbooks/dist');
                 const playbooksSymlink = './dist/products/playbooks';
 
                 fs.mkdir('./dist/products', () => {
-                    if (!fs.existsSync(boardsSymlink)) {
-                        fs.symlinkSync(boardsDist, boardsSymlink, 'dir');
-                    }
                     if (!fs.existsSync(playbooksSymlink)) {
                         fs.symlinkSync(playbooksDist, playbooksSymlink, 'dir');
                     }
@@ -334,7 +329,6 @@ async function initializeModuleFederation() {
 
     async function getRemoteContainers() {
         const products = [
-            {name: 'boards'},
             {name: 'playbooks'},
         ];