## Bug description

The grouped-by-month view in charts is hella confusing. The x-axis shows a date that does not reflect the value on the y-axis.

1. the y-axis shows the number for the END of the month
2. the x-axis reads as "beginning of the month"

![CleanShot 2024-02-05 at 10 23 30@2x](https://github.com/PostHog/posthog/assets/35429197/d78df745-8319-4b78-95fa-d96f18aee357)

### Comparison with daily grouping

Compare the "group by month" view with "group by day". The x-axis labeling aligns with the y-axis values. 

![CleanShot 2024-02-05 at 10 29 20@2x](https://github.com/PostHog/posthog/assets/35429197/998825fa-7406-4214-8310-8f173980f80c)


## How to reproduce

1. Group a chart by month 
2. select "unique events"

## Proposal 

### 1. easy fix - remove the "1." from the labelling

- will still confuse readers with "is this the beginning or end of the month"

![CleanShot 2024-02-05 at 10 23 30@2x](https://github.com/PostHog/posthog/assets/35429197/1a0ae6d4-0e02-4b32-86ab-7b0e069655ed)

### 2. correct fix - show end of month

- removes ambiguity from "is that the beginning or end of month"
- harder to implement because months have different end days

![CleanShot 2024-02-05 at 10 23 30@2x](https://github.com/PostHog/posthog/assets/35429197/61226346-7f97-4bcd-87bf-53fc83c75245)


cc @jannesblobel
posthog/utils.py
"gitlab": bool(settings.SOCIAL_AUTH_GITLAB_KEY and settings.SOCIAL_AUTH_GITLAB_SECRET),
        "google-oauth2": False,
    }
    
    bypass_license: bool = is_cloud() or settings.DEMO
    license = None
    if not bypass_license:
        try:
            from ee.models.license import License
        except ImportError:
            pass
        else:
            license = License.objects.first_valid()
    if getattr(settings, "SOCIAL_AUTH_GOOGLE_OAUTH2_KEY", None) and getattr(
        settings,
        "SOCIAL_AUTH_GOOGLE_OAUTH2_SECRET",
        None,
    ):
        if bypass_license or (license is not None and AvailableFeature.SOCIAL_SSO in license.available_features):
            output["google-oauth2"] = True
        else:
            logger.warning("You have Google login set up, but not the required license!")
    return output
def flatten(i: Union[List, Tuple], max_depth=10) -> Generator:
    for el in i:
        if isinstance(el, list) and max_depth > 0:
            yield from flatten(el, max_depth=max_depth - 1)
        else:
            yield el
def get_daterange(