feat: analytics (#1018)

* dev: initialize plane analytics

* dev: plane analytics endpoint

* dev: update endpoint to give data with segments as well

* dev: analytics with count and effort paramters

* feat: analytics endpoints

* feat: saved analytics

* dev: remove print logs

* dev: rename x_axis to dimension in response

* dev: remove color queries

* dev: update query for None values

* feat: analytics export

* dev: update code structure send color when state or label and fix none count

* dev: uncomment try catch block

* dev: fix segment keyerror

* dev: default analytics endpoint

* dev: fix segmented results

* dev: default analytics endpoint and colors for segment

* dev: total issues and open issues by state

* dev: segment colors

* dev: fix total issue annotate

* dev: effort segmentation

* dev: total estimates and open estimates

* fix: effort when not segmented

* dev: send avatar for default analytics

apiserver/plane/db/models/analytic.py

@@ -0,0 +1,25 @@
+# Django models
+from django.db import models
+from django.conf import settings
+
+from .base import BaseModel
+
+
+class AnalyticView(BaseModel):
+    workspace = models.ForeignKey(
+        "db.Workspace", related_name="analytics", on_delete=models.CASCADE
+    )
+    name = models.CharField(max_length=255)
+    description = models.TextField(blank=True)
+    query = models.JSONField()
+    query_dict = models.JSONField(default=dict)
+
+    class Meta:
+        verbose_name = "Analytic"
+        verbose_name_plural = "Analytics"
+        db_table = "analytic_views"
+        ordering = ("-created_at",)
+
+    def __str__(self):
+        """Return name of the analytic view"""
+        return f"{self.name} <{self.workspace.name}>"