Created the user-guide content (Text and illustrations) (#4683)

* Second attempt

* Small image optimizations

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Co-authored-by: Félix Malfait <felix.malfait@gmail.com>

packages/twenty-website/src/content/user-guide/glossary.mdx

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+---
+title: Glossary
+info: Get familiar with essential terminology used in Twenty.
+icon: IconVocabulary
+image: /images/user-guide/placeholder-header.png
+---
+
+# Company & People
+The CRM has two fundamental types of records:
+- A `Company` represents a business or organization.
+- `People` represent your company's current and prospective customers or clients.
+
+# Kanban
+A `Kanban` is a way to track a business process. Pipelines are present within a *module* and have *stages*:
+- A **module** has the logic for a certain business process (for example: sales, recruiting).
+- **Stages** map the steps in your process (for example: new, ongoing, won, lost).
+
+# Views 
+You can customize the display of your records using views, setting different filters and sorting options for each view.
+
+# Workspace
+A `Workspace` typically represents a company using Twenty. It holds all the records and data that you and your team members add to Twenty.   
+It has a single domain name, which is typically the domain name your company uses for employee email addresses.
+
+Sure, here is the glossary in the requested markdown format:
+
+# Field 
+A field refers to a specific area where particular data is stored for an entity.
+
+# Record 
+A Record indicates an instance of an object, like a specific account or contact.
+
+# Tasks 
+Tasks in Twenty CRM are assigned activities relating to contacts, accounts, or opportunities.
+
+# Opportunities 
+Opportunities in Twenty CRM are potential deals or sales with accounts or contacts.
+
+# Integration 
+Integration are built-in tools that allow to link Twenty with other software or systems.
+
+# User Profile
+A User Profile is the information and settings specific to a workspace member in Twenty.